Remove Basilisk from the Unified XUL Platform repository

Development will proceed at https://github.com/MoonchildProductions/Basilisk

17 files changed, 0 insertions, 3154 deletions

diff --git a/application/basilisk/base/content/newtab/cells.js b/application/basilisk/base/content/newtab/cells.js
deleted file mode 100644
index 47d4ef52d..000000000
--- a/application/basilisk/base/content/newtab/cells.js
+++ /dev/null
@@ -1,126 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-/**
- * This class manages a cell's DOM node (not the actually cell content, a site).
- * It's mostly read-only, i.e. all manipulation of both position and content
- * aren't handled here.
- */
-function Cell(aGrid, aNode) {
-  this._grid = aGrid;
-  this._node = aNode;
-  this._node._newtabCell = this;
-
-  // Register drag-and-drop event handlers.
-  ["dragenter", "dragover", "dragexit", "drop"].forEach(function (aType) {
-    this._node.addEventListener(aType, this, false);
-  }, this);
-}
-
-Cell.prototype = {
-  /**
-   * The grid.
-   */
-  _grid: null,
-
-  /**
-   * The cell's DOM node.
-   */
-  get node() { return this._node; },
-
-  /**
-   * The cell's offset in the grid.
-   */
-  get index() {
-    let index = this._grid.cells.indexOf(this);
-
-    // Cache this value, overwrite the getter.
-    Object.defineProperty(this, "index", {value: index, enumerable: true});
-
-    return index;
-  },
-
-  /**
-   * The previous cell in the grid.
-   */
-  get previousSibling() {
-    let prev = this.node.previousElementSibling;
-    prev = prev && prev._newtabCell;
-
-    // Cache this value, overwrite the getter.
-    Object.defineProperty(this, "previousSibling", {value: prev, enumerable: true});
-
-    return prev;
-  },
-
-  /**
-   * The next cell in the grid.
-   */
-  get nextSibling() {
-    let next = this.node.nextElementSibling;
-    next = next && next._newtabCell;
-
-    // Cache this value, overwrite the getter.
-    Object.defineProperty(this, "nextSibling", {value: next, enumerable: true});
-
-    return next;
-  },
-
-  /**
-   * The site contained in the cell, if any.
-   */
-  get site() {
-    let firstChild = this.node.firstElementChild;
-    return firstChild && firstChild._newtabSite;
-  },
-
-  /**
-   * Checks whether the cell contains a pinned site.
-   * @return Whether the cell contains a pinned site.
-   */
-  containsPinnedSite: function Cell_containsPinnedSite() {
-    let site = this.site;
-    return site && site.isPinned();
-  },
-
-  /**
-   * Checks whether the cell contains a site (is empty).
-   * @return Whether the cell is empty.
-   */
-  isEmpty: function Cell_isEmpty() {
-    return !this.site;
-  },
-
-  /**
-   * Handles all cell events.
-   */
-  handleEvent: function Cell_handleEvent(aEvent) {
-    // We're not responding to external drag/drop events
-    // when our parent window is in private browsing mode.
-    if (inPrivateBrowsingMode() && !gDrag.draggedSite)
-      return;
-
-    if (aEvent.type != "dragexit" && !gDrag.isValid(aEvent))
-      return;
-
-    switch (aEvent.type) {
-      case "dragenter":
-        aEvent.preventDefault();
-        gDrop.enter(this, aEvent);
-        break;
-      case "dragover":
-        aEvent.preventDefault();
-        break;
-      case "dragexit":
-        gDrop.exit(this, aEvent);
-        break;
-      case "drop":
-        aEvent.preventDefault();
-        gDrop.drop(this, aEvent);
-        break;
-    }
-  }
-};
diff --git a/application/basilisk/base/content/newtab/customize.js b/application/basilisk/base/content/newtab/customize.js
deleted file mode 100644
index bc4903f6c..000000000
--- a/application/basilisk/base/content/newtab/customize.js
+++ /dev/null
@@ -1,120 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-var gCustomize = {
-  _nodeIDSuffixes: [
-    "blank",
-    "button",
-    "classic",
-    "panel",
-    "overlay",
-    "learn"
-  ],
-
-  _nodes: {},
-
-  init: function() {
-    for (let idSuffix of this._nodeIDSuffixes) {
-      this._nodes[idSuffix] = document.getElementById("newtab-customize-" + idSuffix);
-    }
-
-    this._nodes.button.addEventListener("click", e => this.showPanel(e));
-    this._nodes.blank.addEventListener("click", this);
-    this._nodes.classic.addEventListener("click", this);
-    this._nodes.learn.addEventListener("click", this);
-
-    this.updateSelected();
-  },
-
-  hidePanel: function() {
-    this._nodes.overlay.addEventListener("transitionend", function onTransitionEnd() {
-      gCustomize._nodes.overlay.removeEventListener("transitionend", onTransitionEnd);
-      gCustomize._nodes.overlay.style.display = "none";
-    });
-    this._nodes.overlay.style.opacity = 0;
-    this._nodes.button.removeAttribute("active");
-    this._nodes.panel.removeAttribute("open");
-    document.removeEventListener("click", this);
-    document.removeEventListener("keydown", this);
-  },
-
-  showPanel: function(event) {
-    if (this._nodes.panel.getAttribute("open") == "true") {
-      return;
-    }
-
-    let {panel, button, overlay} = this._nodes;
-    overlay.style.display = "block";
-    panel.setAttribute("open", "true");
-    button.setAttribute("active", "true");
-    setTimeout(() => {
-      // Wait for display update to take place, then animate.
-      overlay.style.opacity = 0.8;
-    }, 0);
-
-    document.addEventListener("click", this);
-    document.addEventListener("keydown", this);
-
-    // Stop the event propogation to prevent panel from immediately closing
-    // via the document click event that we just added.
-    event.stopPropagation();
-  },
-
-  handleEvent: function(event) {
-    switch (event.type) {
-      case "click":
-        this.onClick(event);
-        break;
-      case "keydown":
-        this.onKeyDown(event);
-        break;
-    }
-  },
-
-  onClick: function(event) {
-    if (event.currentTarget == document) {
-      if (!this._nodes.panel.contains(event.target)) {
-        this.hidePanel();
-      }
-    }
-    switch (event.currentTarget.id) {
-      case "newtab-customize-blank":
-        sendAsyncMessage("NewTab:Customize", {enabled: false});
-        break;
-      case "newtab-customize-classic":
-        sendAsyncMessage("NewTab:Customize", {enabled: true});
-        break;
-      case "newtab-customize-learn":
-        this.showLearn();
-        break;
-    }
-  },
-
-  onKeyDown: function(event) {
-    if (event.keyCode == event.DOM_VK_ESCAPE) {
-      this.hidePanel();
-    }
-  },
-
-  showLearn: function() {
-    window.open(TILES_INTRO_LINK, 'new_window');
-    this.hidePanel();
-  },
-
-  updateSelected: function() {
-    let {enabled} = gAllPages;
-    let selected = enabled ? "classic" : "blank";
-    ["classic", "blank"].forEach(id => {
-      let node = this._nodes[id];
-      if (id == selected) {
-        node.setAttribute("selected", true);
-      }
-      else {
-        node.removeAttribute("selected");
-      }
-    });
-  },
-};
diff --git a/application/basilisk/base/content/newtab/drag.js b/application/basilisk/base/content/newtab/drag.js
deleted file mode 100644
index e3928ebd0..000000000
--- a/application/basilisk/base/content/newtab/drag.js
+++ /dev/null
@@ -1,151 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-/**
- * This singleton implements site dragging functionality.
- */
-var gDrag = {
-  /**
-   * The site offset to the drag start point.
-   */
-  _offsetX: null,
-  _offsetY: null,
-
-  /**
-   * The site that is dragged.
-   */
-  _draggedSite: null,
-  get draggedSite() { return this._draggedSite; },
-
-  /**
-   * The cell width/height at the point the drag started.
-   */
-  _cellWidth: null,
-  _cellHeight: null,
-  get cellWidth() { return this._cellWidth; },
-  get cellHeight() { return this._cellHeight; },
-
-  /**
-   * Start a new drag operation.
-   * @param aSite The site that's being dragged.
-   * @param aEvent The 'dragstart' event.
-   */
-  start: function Drag_start(aSite, aEvent) {
-    this._draggedSite = aSite;
-
-    // Mark nodes as being dragged.
-    let selector = ".newtab-site, .newtab-control, .newtab-thumbnail";
-    let parentCell = aSite.node.parentNode;
-    let nodes = parentCell.querySelectorAll(selector);
-    for (let i = 0; i < nodes.length; i++)
-      nodes[i].setAttribute("dragged", "true");
-
-    parentCell.setAttribute("dragged", "true");
-
-    this._setDragData(aSite, aEvent);
-
-    // Store the cursor offset.
-    let node = aSite.node;
-    let rect = node.getBoundingClientRect();
-    this._offsetX = aEvent.clientX - rect.left;
-    this._offsetY = aEvent.clientY - rect.top;
-
-    // Store the cell dimensions.
-    let cellNode = aSite.cell.node;
-    this._cellWidth = cellNode.offsetWidth;
-    this._cellHeight = cellNode.offsetHeight;
-
-    gTransformation.freezeSitePosition(aSite);
-  },
-
-  /**
-   * Handles the 'drag' event.
-   * @param aSite The site that's being dragged.
-   * @param aEvent The 'drag' event.
-   */
-  drag: function Drag_drag(aSite, aEvent) {
-    // Get the viewport size.
-    let {clientWidth, clientHeight} = document.documentElement;
-
-    // We'll want a padding of 5px.
-    let border = 5;
-
-    // Enforce minimum constraints to keep the drag image inside the window.
-    let left = Math.max(scrollX + aEvent.clientX - this._offsetX, border);
-    let top = Math.max(scrollY + aEvent.clientY - this._offsetY, border);
-
-    // Enforce maximum constraints to keep the drag image inside the window.
-    left = Math.min(left, scrollX + clientWidth - this.cellWidth - border);
-    top = Math.min(top, scrollY + clientHeight - this.cellHeight - border);
-
-    // Update the drag image's position.
-    gTransformation.setSitePosition(aSite, {left: left, top: top});
-  },
-
-  /**
-   * Ends the current drag operation.
-   * @param aSite The site that's being dragged.
-   * @param aEvent The 'dragend' event.
-   */
-  end: function Drag_end(aSite, aEvent) {
-    let nodes = gGrid.node.querySelectorAll("[dragged]")
-    for (let i = 0; i < nodes.length; i++)
-      nodes[i].removeAttribute("dragged");
-
-    // Slide the dragged site back into its cell (may be the old or the new cell).
-    gTransformation.slideSiteTo(aSite, aSite.cell, {unfreeze: true});
-
-    this._draggedSite = null;
-  },
-
-  /**
-   * Checks whether we're responsible for a given drag event.
-   * @param aEvent The drag event to check.
-   * @return Whether we should handle this drag and drop operation.
-   */
-  isValid: function Drag_isValid(aEvent) {
-    let link = gDragDataHelper.getLinkFromDragEvent(aEvent);
-
-    // Check that the drag data is non-empty.
-    // Can happen when dragging places folders.
-    if (!link || !link.url) {
-      return false;
-    }
-
-    // Check that we're not accepting URLs which would inherit the caller's
-    // principal (such as javascript: or data:).
-    return gLinkChecker.checkLoadURI(link.url);
-  },
-
-  /**
-   * Initializes the drag data for the current drag operation.
-   * @param aSite The site that's being dragged.
-   * @param aEvent The 'dragstart' event.
-   */
-  _setDragData: function Drag_setDragData(aSite, aEvent) {
-    let {url, title} = aSite;
-
-    let dt = aEvent.dataTransfer;
-    dt.mozCursor = "default";
-    dt.effectAllowed = "move";
-    dt.setData("text/plain", url);
-    dt.setData("text/uri-list", url);
-    dt.setData("text/x-moz-url", url + "\n" + title);
-    dt.setData("text/html", "<a href=\"" + url + "\">" + url + "</a>");
-
-    // Create and use an empty drag element. We don't want to use the default
-    // drag image with its default opacity.
-    let dragElement = document.createElementNS(HTML_NAMESPACE, "div");
-    dragElement.classList.add("newtab-drag");
-    let scrollbox = document.getElementById("newtab-vertical-margin");
-    scrollbox.appendChild(dragElement);
-    dt.setDragImage(dragElement, 0, 0);
-
-    // After the 'dragstart' event has been processed we can remove the
-    // temporary drag element from the DOM.
-    setTimeout(() => scrollbox.removeChild(dragElement), 0);
-  }
-};
diff --git a/application/basilisk/base/content/newtab/dragDataHelper.js b/application/basilisk/base/content/newtab/dragDataHelper.js
deleted file mode 100644
index 675ff2671..000000000
--- a/application/basilisk/base/content/newtab/dragDataHelper.js
+++ /dev/null
@@ -1,22 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-var gDragDataHelper = {
-  get mimeType() {
-    return "text/x-moz-url";
-  },
-
-  getLinkFromDragEvent: function DragDataHelper_getLinkFromDragEvent(aEvent) {
-    let dt = aEvent.dataTransfer;
-    if (!dt || !dt.types.includes(this.mimeType)) {
-      return null;
-    }
-
-    let data = dt.getData(this.mimeType) || "";
-    let [url, title] = data.split(/[\r\n]+/);
-    return {url: url, title: title};
-  }
-};
diff --git a/application/basilisk/base/content/newtab/drop.js b/application/basilisk/base/content/newtab/drop.js
deleted file mode 100644
index 748652455..000000000
--- a/application/basilisk/base/content/newtab/drop.js
+++ /dev/null
@@ -1,150 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-// A little delay that prevents the grid from being too sensitive when dragging
-// sites around.
-const DELAY_REARRANGE_MS = 100;
-
-/**
- * This singleton implements site dropping functionality.
- */
-var gDrop = {
-  /**
-   * The last drop target.
-   */
-  _lastDropTarget: null,
-
-  /**
-   * Handles the 'dragenter' event.
-   * @param aCell The drop target cell.
-   */
-  enter: function Drop_enter(aCell) {
-    this._delayedRearrange(aCell);
-  },
-
-  /**
-   * Handles the 'dragexit' event.
-   * @param aCell The drop target cell.
-   * @param aEvent The 'dragexit' event.
-   */
-  exit: function Drop_exit(aCell, aEvent) {
-    if (aEvent.dataTransfer && !aEvent.dataTransfer.mozUserCancelled) {
-      this._delayedRearrange();
-    } else {
-      // The drag operation has been cancelled.
-      this._cancelDelayedArrange();
-      this._rearrange();
-    }
-  },
-
-  /**
-   * Handles the 'drop' event.
-   * @param aCell The drop target cell.
-   * @param aEvent The 'dragexit' event.
-   */
-  drop: function Drop_drop(aCell, aEvent) {
-    // The cell that is the drop target could contain a pinned site. We need
-    // to find out where that site has gone and re-pin it there.
-    if (aCell.containsPinnedSite())
-      this._repinSitesAfterDrop(aCell);
-
-    // Pin the dragged or insert the new site.
-    this._pinDraggedSite(aCell, aEvent);
-
-    this._cancelDelayedArrange();
-
-    // Update the grid and move all sites to their new places.
-    gUpdater.updateGrid();
-  },
-
-  /**
-   * Re-pins all pinned sites in their (new) positions.
-   * @param aCell The drop target cell.
-   */
-  _repinSitesAfterDrop: function Drop_repinSitesAfterDrop(aCell) {
-    let sites = gDropPreview.rearrange(aCell);
-
-    // Filter out pinned sites.
-    let pinnedSites = sites.filter(function (aSite) {
-      return aSite && aSite.isPinned();
-    });
-
-    // Re-pin all shifted pinned cells.
-    pinnedSites.forEach(aSite => aSite.pin(sites.indexOf(aSite)));
-  },
-
-  /**
-   * Pins the dragged site in its new place.
-   * @param aCell The drop target cell.
-   * @param aEvent The 'dragexit' event.
-   */
-  _pinDraggedSite: function Drop_pinDraggedSite(aCell, aEvent) {
-    let index = aCell.index;
-    let draggedSite = gDrag.draggedSite;
-
-    if (draggedSite) {
-      // Pin the dragged site at its new place.
-      if (aCell != draggedSite.cell)
-        draggedSite.pin(index);
-    } else {
-      let link = gDragDataHelper.getLinkFromDragEvent(aEvent);
-      if (link) {
-        // A new link was dragged onto the grid. Create it by pinning its URL.
-        gPinnedLinks.pin(link, index);
-
-        // Make sure the newly added link is not blocked.
-        gBlockedLinks.unblock(link);
-      }
-    }
-  },
-
-  /**
-   * Time a rearrange with a little delay.
-   * @param aCell The drop target cell.
-   */
-  _delayedRearrange: function Drop_delayedRearrange(aCell) {
-    // The last drop target didn't change so there's no need to re-arrange.
-    if (this._lastDropTarget == aCell)
-      return;
-
-    let self = this;
-
-    function callback() {
-      self._rearrangeTimeout = null;
-      self._rearrange(aCell);
-    }
-
-    this._cancelDelayedArrange();
-    this._rearrangeTimeout = setTimeout(callback, DELAY_REARRANGE_MS);
-
-    // Store the last drop target.
-    this._lastDropTarget = aCell;
-  },
-
-  /**
-   * Cancels a timed rearrange, if any.
-   */
-  _cancelDelayedArrange: function Drop_cancelDelayedArrange() {
-    if (this._rearrangeTimeout) {
-      clearTimeout(this._rearrangeTimeout);
-      this._rearrangeTimeout = null;
-    }
-  },
-
-  /**
-   * Rearrange all sites in the grid depending on the current drop target.
-   * @param aCell The drop target cell.
-   */
-  _rearrange: function Drop_rearrange(aCell) {
-    let sites = gGrid.sites;
-
-    // We need to rearrange the grid only if there's a current drop target.
-    if (aCell)
-      sites = gDropPreview.rearrange(aCell);
-
-    gTransformation.rearrangeSites(sites, {unfreeze: !aCell});
-  }
-};
diff --git a/application/basilisk/base/content/newtab/dropPreview.js b/application/basilisk/base/content/newtab/dropPreview.js
deleted file mode 100644
index fd7587a35..000000000
--- a/application/basilisk/base/content/newtab/dropPreview.js
+++ /dev/null
@@ -1,222 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-/**
- * This singleton provides the ability to re-arrange the current grid to
- * indicate the transformation that results from dropping a cell at a certain
- * position.
- */
-var gDropPreview = {
-  /**
-   * Rearranges the sites currently contained in the grid when a site would be
-   * dropped onto the given cell.
-   * @param aCell The drop target cell.
-   * @return The re-arranged array of sites.
-   */
-  rearrange: function DropPreview_rearrange(aCell) {
-    let sites = gGrid.sites;
-
-    // Insert the dragged site into the current grid.
-    this._insertDraggedSite(sites, aCell);
-
-    // After the new site has been inserted we need to correct the positions
-    // of all pinned tabs that have been moved around.
-    this._repositionPinnedSites(sites, aCell);
-
-    return sites;
-  },
-
-  /**
-   * Inserts the currently dragged site into the given array of sites.
-   * @param aSites The array of sites to insert into.
-   * @param aCell The drop target cell.
-   */
-  _insertDraggedSite: function DropPreview_insertDraggedSite(aSites, aCell) {
-    let dropIndex = aCell.index;
-    let draggedSite = gDrag.draggedSite;
-
-    // We're currently dragging a site.
-    if (draggedSite) {
-      let dragCell = draggedSite.cell;
-      let dragIndex = dragCell.index;
-
-      // Move the dragged site into its new position.
-      if (dragIndex != dropIndex) {
-        aSites.splice(dragIndex, 1);
-        aSites.splice(dropIndex, 0, draggedSite);
-      }
-    // We're handling an external drag item.
-    } else {
-      aSites.splice(dropIndex, 0, null);
-    }
-  },
-
-  /**
-   * Correct the position of all pinned sites that might have been moved to
-   * different positions after the dragged site has been inserted.
-   * @param aSites The array of sites containing the dragged site.
-   * @param aCell The drop target cell.
-   */
-  _repositionPinnedSites:
-    function DropPreview_repositionPinnedSites(aSites, aCell) {
-
-    // Collect all pinned sites.
-    let pinnedSites = this._filterPinnedSites(aSites, aCell);
-
-    // Correct pinned site positions.
-    pinnedSites.forEach(function (aSite) {
-      aSites[aSites.indexOf(aSite)] = aSites[aSite.cell.index];
-      aSites[aSite.cell.index] = aSite;
-    }, this);
-
-    // There might be a pinned cell that got pushed out of the grid, try to
-    // sneak it in by removing a lower-priority cell.
-    if (this._hasOverflowedPinnedSite(aSites, aCell))
-      this._repositionOverflowedPinnedSite(aSites, aCell);
-  },
-
-  /**
-   * Filter pinned sites out of the grid that are still on their old positions
-   * and have not moved.
-   * @param aSites The array of sites to filter.
-   * @param aCell The drop target cell.
-   * @return The filtered array of sites.
-   */
-  _filterPinnedSites: function DropPreview_filterPinnedSites(aSites, aCell) {
-    let draggedSite = gDrag.draggedSite;
-
-    // When dropping on a cell that contains a pinned site make sure that all
-    // pinned cells surrounding the drop target are moved as well.
-    let range = this._getPinnedRange(aCell);
-
-    return aSites.filter(function (aSite, aIndex) {
-      // The site must be valid, pinned and not the dragged site.
-      if (!aSite || aSite == draggedSite || !aSite.isPinned())
-        return false;
-
-      let index = aSite.cell.index;
-
-      // If it's not in the 'pinned range' it's a valid pinned site.
-      return (index > range.end || index < range.start);
-    });
-  },
-
-  /**
-   * Determines the range of pinned sites surrounding the drop target cell.
-   * @param aCell The drop target cell.
-   * @return The range of pinned cells.
-   */
-  _getPinnedRange: function DropPreview_getPinnedRange(aCell) {
-    let dropIndex = aCell.index;
-    let range = {start: dropIndex, end: dropIndex};
-
-    // We need a pinned range only when dropping on a pinned site.
-    if (aCell.containsPinnedSite()) {
-      let links = gPinnedLinks.links;
-
-      // Find all previous siblings of the drop target that are pinned as well.
-      while (range.start && links[range.start - 1])
-        range.start--;
-
-      let maxEnd = links.length - 1;
-
-      // Find all next siblings of the drop target that are pinned as well.
-      while (range.end < maxEnd && links[range.end + 1])
-        range.end++;
-    }
-
-    return range;
-  },
-
-  /**
-   * Checks if the given array of sites contains a pinned site that has
-   * been pushed out of the grid.
-   * @param aSites The array of sites to check.
-   * @param aCell The drop target cell.
-   * @return Whether there is an overflowed pinned cell.
-   */
-  _hasOverflowedPinnedSite:
-    function DropPreview_hasOverflowedPinnedSite(aSites, aCell) {
-
-    // If the drop target isn't pinned there's no way a pinned site has been
-    // pushed out of the grid so we can just exit here.
-    if (!aCell.containsPinnedSite())
-      return false;
-
-    let cells = gGrid.cells;
-
-    // No cells have been pushed out of the grid, nothing to do here.
-    if (aSites.length <= cells.length)
-      return false;
-
-    let overflowedSite = aSites[cells.length];
-
-    // Nothing to do if the site that got pushed out of the grid is not pinned.
-    return (overflowedSite && overflowedSite.isPinned());
-  },
-
-  /**
-   * We have a overflowed pinned site that we need to re-position so that it's
-   * visible again. We try to find a lower-priority cell (empty or containing
-   * an unpinned site) that we can move it to.
-   * @param aSites The array of sites.
-   * @param aCell The drop target cell.
-   */
-  _repositionOverflowedPinnedSite:
-    function DropPreview_repositionOverflowedPinnedSite(aSites, aCell) {
-
-    // Try to find a lower-priority cell (empty or containing an unpinned site).
-    let index = this._indexOfLowerPrioritySite(aSites, aCell);
-
-    if (index > -1) {
-      let cells = gGrid.cells;
-      let dropIndex = aCell.index;
-
-      // Move all pinned cells to their new positions to let the overflowed
-      // site fit into the grid.
-      for (let i = index + 1, lastPosition = index; i < aSites.length; i++) {
-        if (i != dropIndex) {
-          aSites[lastPosition] = aSites[i];
-          lastPosition = i;
-        }
-      }
-
-      // Finally, remove the overflowed site from its previous position.
-      aSites.splice(cells.length, 1);
-    }
-  },
-
-  /**
-   * Finds the index of the last cell that is empty or contains an unpinned
-   * site. These are considered to be of a lower priority.
-   * @param aSites The array of sites.
-   * @param aCell The drop target cell.
-   * @return The cell's index.
-   */
-  _indexOfLowerPrioritySite:
-    function DropPreview_indexOfLowerPrioritySite(aSites, aCell) {
-
-    let cells = gGrid.cells;
-    let dropIndex = aCell.index;
-
-    // Search (beginning with the last site in the grid) for a site that is
-    // empty or unpinned (an thus lower-priority) and can be pushed out of the
-    // grid instead of the pinned site.
-    for (let i = cells.length - 1; i >= 0; i--) {
-      // The cell that is our drop target is not a good choice.
-      if (i == dropIndex)
-        continue;
-
-      let site = aSites[i];
-
-      // We can use the cell only if it's empty or the site is un-pinned.
-      if (!site || !site.isPinned())
-        return i;
-    }
-
-    return -1;
-  }
-};
diff --git a/application/basilisk/base/content/newtab/dropTargetShim.js b/application/basilisk/base/content/newtab/dropTargetShim.js
deleted file mode 100644
index 57a97fa00..000000000
--- a/application/basilisk/base/content/newtab/dropTargetShim.js
+++ /dev/null
@@ -1,232 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-/**
- * This singleton provides a custom drop target detection. We need this because
- * the default DnD target detection relies on the cursor's position. We want
- * to pick a drop target based on the dragged site's position.
- */
-var gDropTargetShim = {
-  /**
-   * Cache for the position of all cells, cleaned after drag finished.
-   */
-  _cellPositions: null,
-
-  /**
-   * The last drop target that was hovered.
-   */
-  _lastDropTarget: null,
-
-  /**
-   * Initializes the drop target shim.
-   */
-  init: function () {
-    gGrid.node.addEventListener("dragstart", this, true);
-  },
-
-  /**
-   * Add all event listeners needed during a drag operation.
-   */
-  _addEventListeners: function () {
-    gGrid.node.addEventListener("dragend", this);
-
-    let docElement = document.documentElement;
-    docElement.addEventListener("dragover", this);
-    docElement.addEventListener("dragenter", this);
-    docElement.addEventListener("drop", this);
-  },
-
-  /**
-   * Remove all event listeners that were needed during a drag operation.
-   */
-  _removeEventListeners: function () {
-    gGrid.node.removeEventListener("dragend", this);
-
-    let docElement = document.documentElement;
-    docElement.removeEventListener("dragover", this);
-    docElement.removeEventListener("dragenter", this);
-    docElement.removeEventListener("drop", this);
-  },
-
-  /**
-   * Handles all shim events.
-   */
-  handleEvent: function (aEvent) {
-    switch (aEvent.type) {
-      case "dragstart":
-        this._dragstart(aEvent);
-        break;
-      case "dragenter":
-        aEvent.preventDefault();
-        break;
-      case "dragover":
-        this._dragover(aEvent);
-        break;
-      case "drop":
-        this._drop(aEvent);
-        break;
-      case "dragend":
-        this._dragend(aEvent);
-        break;
-    }
-  },
-
-  /**
-   * Handles the 'dragstart' event.
-   * @param aEvent The 'dragstart' event.
-   */
-  _dragstart: function (aEvent) {
-    if (aEvent.target.classList.contains("newtab-link")) {
-      gGrid.lock();
-      this._addEventListeners();
-    }
-  },
-
-  /**
-   * Handles the 'dragover' event.
-   * @param aEvent The 'dragover' event.
-   */
-  _dragover: function (aEvent) {
-    // XXX bug 505521 - Use the dragover event to retrieve the
-    //                  current mouse coordinates while dragging.
-    let sourceNode = aEvent.dataTransfer.mozSourceNode.parentNode;
-    gDrag.drag(sourceNode._newtabSite, aEvent);
-
-    // Find the current drop target, if there's one.
-    this._updateDropTarget(aEvent);
-
-    // If we have a valid drop target,
-    // let the drag-and-drop service know.
-    if (this._lastDropTarget) {
-      aEvent.preventDefault();
-    }
-  },
-
-  /**
-   * Handles the 'drop' event.
-   * @param aEvent The 'drop' event.
-   */
-  _drop: function (aEvent) {
-    // We're accepting all drops.
-    aEvent.preventDefault();
-
-    // remember that drop event was seen, this explicitly
-    // assumes that drop event preceeds dragend event
-    this._dropSeen = true;
-
-    // Make sure to determine the current drop target
-    // in case the dragover event hasn't been fired.
-    this._updateDropTarget(aEvent);
-
-    // A site was successfully dropped.
-    this._dispatchEvent(aEvent, "drop", this._lastDropTarget);
-  },
-
-  /**
-   * Handles the 'dragend' event.
-   * @param aEvent The 'dragend' event.
-   */
-  _dragend: function (aEvent) {
-    if (this._lastDropTarget) {
-      if (aEvent.dataTransfer.mozUserCancelled || !this._dropSeen) {
-        // The drag operation was cancelled or no drop event was generated
-        this._dispatchEvent(aEvent, "dragexit", this._lastDropTarget);
-        this._dispatchEvent(aEvent, "dragleave", this._lastDropTarget);
-      }
-
-      // Clean up.
-      this._lastDropTarget = null;
-      this._cellPositions = null;
-    }
-
-    this._dropSeen = false;
-    gGrid.unlock();
-    this._removeEventListeners();
-  },
-
-  /**
-   * Tries to find the current drop target and will fire
-   * appropriate dragenter, dragexit, and dragleave events.
-   * @param aEvent The current drag event.
-   */
-  _updateDropTarget: function (aEvent) {
-    // Let's see if we find a drop target.
-    let target = this._findDropTarget(aEvent);
-
-    if (target != this._lastDropTarget) {
-      if (this._lastDropTarget)
-        // We left the last drop target.
-        this._dispatchEvent(aEvent, "dragexit", this._lastDropTarget);
-
-      if (target)
-        // We're now hovering a (new) drop target.
-        this._dispatchEvent(aEvent, "dragenter", target);
-
-      if (this._lastDropTarget)
-        // We left the last drop target.
-        this._dispatchEvent(aEvent, "dragleave", this._lastDropTarget);
-
-      this._lastDropTarget = target;
-    }
-  },
-
-  /**
-   * Determines the current drop target by matching the dragged site's position
-   * against all cells in the grid.
-   * @return The currently hovered drop target or null.
-   */
-  _findDropTarget: function () {
-    // These are the minimum intersection values - we want to use the cell if
-    // the site is >= 50% hovering its position.
-    let minWidth = gDrag.cellWidth / 2;
-    let minHeight = gDrag.cellHeight / 2;
-
-    let cellPositions = this._getCellPositions();
-    let rect = gTransformation.getNodePosition(gDrag.draggedSite.node);
-
-    // Compare each cell's position to the dragged site's position.
-    for (let i = 0; i < cellPositions.length; i++) {
-      let inter = rect.intersect(cellPositions[i].rect);
-
-      // If the intersection is big enough we found a drop target.
-      if (inter.width >= minWidth && inter.height >= minHeight)
-        return cellPositions[i].cell;
-    }
-
-    // No drop target found.
-    return null;
-  },
-
-  /**
-   * Gets the positions of all cell nodes.
-   * @return The (cached) cell positions.
-   */
-  _getCellPositions: function DropTargetShim_getCellPositions() {
-    if (this._cellPositions)
-      return this._cellPositions;
-
-    return this._cellPositions = gGrid.cells.map(function (cell) {
-      return {cell: cell, rect: gTransformation.getNodePosition(cell.node)};
-    });
-  },
-
-  /**
-   * Dispatches a custom DragEvent on the given target node.
-   * @param aEvent The source event.
-   * @param aType The event type.
-   * @param aTarget The target node that receives the event.
-   */
-  _dispatchEvent: function (aEvent, aType, aTarget) {
-    let node = aTarget.node;
-    let event = document.createEvent("DragEvent");
-
-    // The event should not bubble to prevent recursion.
-    event.initDragEvent(aType, false, true, window, 0, 0, 0, 0, 0, false, false,
-                        false, false, 0, node, aEvent.dataTransfer);
-
-    node.dispatchEvent(event);
-  }
-};
diff --git a/application/basilisk/base/content/newtab/grid.js b/application/basilisk/base/content/newtab/grid.js
deleted file mode 100644
index 726150a6c..000000000
--- a/application/basilisk/base/content/newtab/grid.js
+++ /dev/null
@@ -1,268 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-/**
- * Define various fixed dimensions
- */
-const GRID_BOTTOM_EXTRA = 7; // title's line-height extends 7px past the margin
-const GRID_WIDTH_EXTRA = 1; // provide 1px buffer to allow for rounding error
-
-/**
- * This singleton represents the grid that contains all sites.
- */
-var gGrid = {
-  /**
-   * The DOM node of the grid.
-   */
-  _node: null,
-  _gridDefaultContent: null,
-  get node() { return this._node; },
-
-  /**
-   * The cached DOM fragment for sites.
-   */
-  _siteFragment: null,
-
-  /**
-   * All cells contained in the grid.
-   */
-  _cells: [],
-  get cells() { return this._cells; },
-
-  /**
-   * All sites contained in the grid's cells. Sites may be empty.
-   */
-  get sites() { return [for (cell of this.cells) cell.site]; },
-
-  // Tells whether the grid has already been initialized.
-  get ready() { return !!this._ready; },
-
-  // Returns whether the page has finished loading yet.
-  get isDocumentLoaded() { return document.readyState == "complete"; },
-
-  /**
-   * Initializes the grid.
-   * @param aSelector The query selector of the grid.
-   */
-  init: function Grid_init() {
-    this._node = document.getElementById("newtab-grid");
-    this._gridDefaultContent = this._node.lastChild;
-    this._createSiteFragment();
-
-    gLinks.populateCache(() => {
-      this._refreshGrid();
-      this._ready = true;
-
-      // If fetching links took longer than loading the page itself then
-      // we need to resize the grid as that was blocked until now.
-      // We also want to resize now if the page was already loaded when
-      // initializing the grid (the user toggled the page).
-      this._resizeGrid();
-
-      addEventListener("resize", this);
-    });
-
-    // Resize the grid as soon as the page loads.
-    if (!this.isDocumentLoaded) {
-      addEventListener("load", this);
-    }
-  },
-
-  /**
-   * Creates a new site in the grid.
-   * @param aLink The new site's link.
-   * @param aCell The cell that will contain the new site.
-   * @return The newly created site.
-   */
-  createSite: function Grid_createSite(aLink, aCell) {
-    let node = aCell.node;
-    node.appendChild(this._siteFragment.cloneNode(true));
-    return new Site(node.firstElementChild, aLink);
-  },
-
-  /**
-   * Handles all grid events.
-   */
-  handleEvent: function Grid_handleEvent(aEvent) {
-    switch (aEvent.type) {
-      case "load":
-      case "resize":
-        this._resizeGrid();
-        break;
-    }
-  },
-
-  /**
-   * Locks the grid to block all pointer events.
-   */
-  lock: function Grid_lock() {
-    this.node.setAttribute("locked", "true");
-  },
-
-  /**
-   * Unlocks the grid to allow all pointer events.
-   */
-  unlock: function Grid_unlock() {
-    this.node.removeAttribute("locked");
-  },
-
-  /**
-   * Renders and resizes the gird. _resizeGrid() call is needed to ensure
-   * that scrollbar disappears when the bottom row becomes empty following
-   * the block action, or tile display is turmed off via cog menu
-   */
-
-  refresh() {
-    this._refreshGrid();
-    this._resizeGrid();
-  },
-
-  /**
-   * Renders the grid, including cells and sites.
-   */
-  _refreshGrid() {
-    let cell = document.createElementNS(HTML_NAMESPACE, "div");
-    cell.classList.add("newtab-cell");
-
-    // Creates all the cells up to the maximum
-    let fragment = document.createDocumentFragment();
-    for (let i = 0; i < gGridPrefs.gridColumns * gGridPrefs.gridRows; i++) {
-      fragment.appendChild(cell.cloneNode(true));
-    }
-
-    // Create cells.
-    let cells = Array.from(fragment.childNodes, (cell) => new Cell(this, cell));
-
-    // Fetch links.
-    let links = gLinks.getLinks();
-
-    // Create sites.
-    let numLinks = Math.min(links.length, cells.length);
-    for (let i = 0; i < numLinks; i++) {
-      if (links[i]) {
-        this.createSite(links[i], cells[i]);
-      }
-    }
-
-    this._cells = cells;
-    while (this._gridDefaultContent.nextSibling) {
-      this._gridDefaultContent.nextSibling.remove();
-    }
-    this._node.appendChild(fragment);
-  },
-
-  /**
-   * Calculate the height for a number of rows up to the maximum rows
-   * @param rows Number of rows defaulting to the max
-   */
-  _computeHeight: function Grid_computeHeight(aRows) {
-    let {gridRows} = gGridPrefs;
-    aRows = aRows === undefined ? gridRows : Math.min(gridRows, aRows);
-    return aRows * this._cellHeight + GRID_BOTTOM_EXTRA;
-  },
-
-  /**
-   * Creates the DOM fragment that is re-used when creating sites.
-   */
-  _createSiteFragment: function Grid_createSiteFragment() {
-    let site = document.createElementNS(HTML_NAMESPACE, "div");
-    site.classList.add("newtab-site");
-    site.setAttribute("draggable", "true");
-
-    // Create the site's inner HTML code.
-    site.innerHTML =
-      '<a class="newtab-link">' +
-      '  <span class="newtab-thumbnail placeholder"/>' +
-      '  <span class="newtab-thumbnail thumbnail"/>' +
-      '  <span class="newtab-title"/>' +
-      '</a>' +
-      '<input type="button" title="' + newTabString("pin") + '"' +
-      '       class="newtab-control newtab-control-pin"/>' +
-      '<input type="button" title="' + newTabString("block") + '"' +
-      '       class="newtab-control newtab-control-block"/>';
-
-    this._siteFragment = document.createDocumentFragment();
-    this._siteFragment.appendChild(site);
-  },
-
-  /**
-   * Test a tile at a given position for being pinned or history
-   * @param position Position in sites array
-   */
-  _isHistoricalTile: function Grid_isHistoricalTile(aPos) {
-    let site = this.sites[aPos];
-    return site && (site.isPinned() || site.link && site.link.type == "history");
-  },
-
-  /**
-   * Make sure the correct number of rows and columns are visible
-   */
-  _resizeGrid: function Grid_resizeGrid() {
-    // If we're somehow called before the page has finished loading,
-    // let's bail out to avoid caching zero heights and widths.
-    // We'll be called again when DOMContentLoaded fires.
-    // Same goes for the grid if that's not ready yet.
-    if (!this.isDocumentLoaded || !this._ready) {
-      return;
-    }
-
-    // Save the cell's computed height/width including margin and border
-    if (this._cellHeight === undefined) {
-      let refCell = document.querySelector(".newtab-cell");
-      let style = getComputedStyle(refCell);
-      this._cellHeight = refCell.offsetHeight +
-        parseFloat(style.marginTop) + parseFloat(style.marginBottom);
-      this._cellWidth = refCell.offsetWidth +
-        parseFloat(style.marginLeft) + parseFloat(style.marginRight);
-    }
-
-    let searchContainer = document.querySelector("#newtab-search-container");
-    // Save search-container margin height
-    if (this._searchContainerMargin === undefined) {
-      let style = getComputedStyle(searchContainer);
-      this._searchContainerMargin = parseFloat(style.marginBottom) +
-                                    parseFloat(style.marginTop);
-    }
-
-    // Find the number of rows we can place into view port
-    let availHeight = document.documentElement.clientHeight -
-                      searchContainer.offsetHeight - this._searchContainerMargin;
-    let visibleRows = Math.floor(availHeight / this._cellHeight);
-
-    // Find the number of columns that fit into view port
-    let maxGridWidth = gGridPrefs.gridColumns * this._cellWidth + GRID_WIDTH_EXTRA;
-    // available width is current grid width, but no greater than maxGridWidth
-    let availWidth = Math.min(document.querySelector("#newtab-grid").clientWidth,
-                              maxGridWidth);
-    // finally get the number of columns we can fit into view port
-    let gridColumns = Math.floor(availWidth / this._cellWidth);
-    // walk sites backwords until a pinned or history tile is found or visibleRows reached
-    let tileIndex = Math.min(gGridPrefs.gridRows * gridColumns, this.sites.length) - 1;
-    while (tileIndex >= visibleRows * gridColumns) {
-      if (this._isHistoricalTile(tileIndex)) {
-        break;
-      }
-      tileIndex--;
-    }
-
-    // Compute the actual number of grid rows we will display (potentially
-    // with a scroll bar). tileIndex now points to a historical tile with
-    // heighest index or to the last index of the visible row, if none found
-    // Dividing tileIndex by number of tiles in a column gives the rows
-    let gridRows = Math.floor(tileIndex / gridColumns) + 1;
-
-    // we need to set grid width, for otherwise the scrollbar may shrink
-    // the grid when shown and cause grid layout to be different from
-    // what being computed above. This, in turn, may cause scrollbar shown
-    // for directory tiles, and introduce jitter when grid width is aligned
-    // exactly on the column boundary
-    this._node.style.width = gridColumns * this._cellWidth + "px";
-    this._node.style.maxWidth = gGridPrefs.gridColumns * this._cellWidth +
-                                GRID_WIDTH_EXTRA + "px";
-    this._node.style.height = this._computeHeight() + "px";
-    this._node.style.maxHeight = this._computeHeight(gridRows) + "px";
-  }
-};
diff --git a/application/basilisk/base/content/newtab/newTab.css b/application/basilisk/base/content/newtab/newTab.css
deleted file mode 100644
index 64b3ed7ef..000000000
--- a/application/basilisk/base/content/newtab/newTab.css
+++ /dev/null
@@ -1,544 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-html {
-  width: 100%;
-  height: 100%;
-}
-
-body {
-  font: message-box;
-  width: 100%;
-  height: 100%;
-  padding: 0;
-  margin: 0;
-  background-color: #F9F9F9;
-  display: -moz-box;
-  position: relative;
-  -moz-box-flex: 1;
-  -moz-user-focus: normal;
-  -moz-box-orient: vertical;
-}
-
-input {
-  font: message-box;
-  font-size: 16px;
-}
-
-input[type=button] {
-  cursor: pointer;
-}
-
-/* UNDO */
-#newtab-undo-container {
-  transition: opacity 100ms ease-out;
-  -moz-box-align: center;
-  -moz-box-pack: center;
-}
-
-#newtab-undo-container[undo-disabled] {
-  opacity: 0;
-  pointer-events: none;
-}
-
-/* CUSTOMIZE */
-#newtab-customize-button {
-  position: absolute;
-  top: 10px;
-  right: 20px;
-  z-index: 101;
-}
-
-#newtab-customize-button:dir(rtl) {
-  left: 20px;
-  right: auto;
-}
-
-/* MARGINS */
-#newtab-vertical-margin {
-  display: -moz-box;
-  position: relative;
-  -moz-box-flex: 1;
-  -moz-box-orient: vertical;
-}
-
-#newtab-margin-undo-container {
-  display: -moz-box;
-  left: 6px;
-  position: absolute;
-  top: 6px;
-  z-index: 1;
-}
-
-#newtab-margin-undo-container:dir(rtl) {
-  left: auto;
-  right: 6px;
-}
-
-#newtab-undo-close-button:dir(rtl) {
-  float:left;
-}
-
-#newtab-horizontal-margin {
-  display: -moz-box;
-  -moz-box-flex: 1;
-}
-
-#newtab-margin-top,
-#newtab-margin-bottom {
-  display: -moz-box;
-  position: relative;
-}
-
-#newtab-margin-top {
-  -moz-box-flex: 1;
-}
-
-#newtab-margin-bottom {
-  -moz-box-flex: 2;
-}
-
-.newtab-side-margin {
-  min-width: 10px;
-  -moz-box-flex: 1;
-}
-
-/* GRID */
-#newtab-grid {
-  -moz-box-flex: 5;
-  overflow: hidden;
-  text-align: center;
-  transition: 100ms ease-out;
-  transition-property: opacity;
-}
-
-#newtab-grid[page-disabled] {
-  opacity: 0;
-}
-
-#newtab-grid[locked],
-#newtab-grid[page-disabled] {
-  pointer-events: none;
-}
-
-/*
- * If you change the sizes here, make sure you
- * change the preferences:
- * toolkit.pageThumbs.minWidth
- * toolkit.pageThumbs.minHeight
- */
-/* CELLS */
-.newtab-cell {
-  display: -moz-box;
-  height: 210px;
-  margin: 20px 10px 35px;
-  width: 290px;
-}
-
-/* SITES */
-.newtab-site {
-  position: relative;
-  -moz-box-flex: 1;
-  transition: 100ms ease-out;
-  transition-property: top, left, opacity;
-}
-
-.newtab-site[frozen] {
-  position: absolute;
-  pointer-events: none;
-}
-
-.newtab-site[dragged] {
-  transition-property: none;
-  z-index: 10;
-}
-
-/* LINK + THUMBNAILS */
-.newtab-link,
-.newtab-thumbnail {
-  position: absolute;
-  left: 0;
-  top: 0;
-  right: 0;
-  bottom: 0;
-}
-
-/* TITLES */
-.newtab-title {
-  overflow: hidden;
-  position: absolute;
-  right: 0;
-  text-align: center;
-}
-
-.newtab-title {
-  bottom: 0;
-  white-space: nowrap;
-  text-overflow: ellipsis;
-  vertical-align: middle;
-}
-
-.newtab-title {
-  left: 0;
-  padding: 0 4px;
-}
-
-/* CONTROLS */
-.newtab-control {
-  position: absolute;
-  opacity: 0;
-  transition: opacity 100ms ease-out;
-}
-
-.newtab-control:-moz-focusring,
-.newtab-cell:not([ignorehover]) > .newtab-site:hover > .newtab-control {
-  opacity: 1;
-}
-
-.newtab-control[dragged] {
-  opacity: 0 !important;
-}
-
-@media (-moz-touch-enabled) {
-  .newtab-control {
-    opacity: 1;
-  }
-}
-
-/* DRAG & DROP */
-
-/*
- * This is just a temporary drag element used for dataTransfer.setDragImage()
- * so that we can use custom drag images and elements. It needs an opacity of
- * 0.01 so that the core code detects that it's in fact a visible element.
- */
-.newtab-drag {
-  width: 1px;
-  height: 1px;
-  background-color: #fff;
-  opacity: 0.01;
-}
-
-/* SEARCH */
-#newtab-search-container {
-  display: -moz-box;
-  position: relative;
-  -moz-box-pack: center;
-  margin: 40px 0 15px;
-}
-
-#newtab-search-container[page-disabled] {
-  opacity: 0;
-  pointer-events: none;
-}
-
-#newtab-search-form {
-  display: -moz-box;
-  position: relative;
-  height: 36px;
-  -moz-box-flex: 1;
-  max-width: 600px; /* 2 * (290 cell width + 10 cell margin) */
-}
-
-#newtab-search-icon {
-  border: 1px transparent;
-  padding: 0;
-  margin: 0;
-  width: 36px;
-  height: 36px;
-  background: url("chrome://browser/skin/search-indicator-magnifying-glass.svg") center center no-repeat;
-  position: absolute;
-}
-
-#newtab-search-text {
-  -moz-box-flex: 1;
-  padding-top: 6px;
-  padding-bottom: 6px;
-  padding-inline-start: 34px;
-  padding-inline-end: 8px;
-  background: hsla(0,0%,100%,.9) padding-box;
-  border: 1px solid;
-  border-spacing: 0;
-  border-radius: 2px 0 0 2px;
-  border-color: hsla(210,54%,20%,.15) hsla(210,54%,20%,.17) hsla(210,54%,20%,.2);
-  box-shadow: 0 1px 0 hsla(210,65%,9%,.02) inset,
-              0 0 2px hsla(210,65%,9%,.1) inset,
-              0 1px 0 hsla(0,0%,100%,.2);
-  color: inherit;
-  unicode-bidi: plaintext;
-}
-
-#newtab-search-text:dir(rtl) {
-  border-radius: 0 2px 2px 0;
-}
-
-#newtab-search-text[aria-expanded="true"] {
-  border-radius: 2px 0 0 0;
-}
-
-#newtab-search-text[aria-expanded="true"]:dir(rtl) {
-  border-radius: 0 2px 0 0;
-}
-
-#newtab-search-text[keepfocus],
-#newtab-search-text:focus,
-#newtab-search-text[autofocus] {
-  border-color: hsla(206,100%,60%,.6) hsla(206,76%,52%,.6) hsla(204,100%,40%,.6);
-}
-
-#newtab-search-submit {
-  margin-inline-start: -1px;
-  color: transparent;
-  background: url("chrome://browser/skin/search-arrow-go.svg#search-arrow-go") center center no-repeat, linear-gradient(hsla(0,0%,100%,.8), hsla(0,0%,100%,.1)) padding-box;
-  padding: 0;
-  border: 1px solid;
-  border-color: hsla(210,54%,20%,.15) hsla(210,54%,20%,.17) hsla(210,54%,20%,.2);
-  border-radius: 0 2px 2px 0;
-  border-inline-start: 1px solid transparent;
-  box-shadow: 0 0 2px hsla(0,0%,100%,.5) inset,
-              0 1px 0 hsla(0,0%,100%,.2);
-  cursor: pointer;
-  transition-property: background-color, border-color, box-shadow;
-  transition-duration: 150ms;
-  width: 50px;
-}
-
-#newtab-search-submit:dir(rtl) {
-  border-radius: 2px 0 0 2px;
-  background-image: url("chrome://browser/skin/search-arrow-go.svg#search-arrow-go-rtl"), linear-gradient(hsla(0,0%,100%,.8), hsla(0,0%,100%,.1));
-}
-
-#newtab-search-text:focus + #newtab-search-submit,
-#newtab-search-text + #newtab-search-submit:hover,
-#newtab-search-text[autofocus] + #newtab-search-submit {
-  border-color: #59b5fc #45a3e7 #3294d5;
-}
-
-#newtab-search-text:focus + #newtab-search-submit,
-#newtab-search-text[keepfocus] + #newtab-search-submit,
-#newtab-search-text[autofocus] + #newtab-search-submit {
-  background-image: url("chrome://browser/skin/search-arrow-go.svg#search-arrow-go-inverted"), linear-gradient(#4cb1ff, #1793e5);
-  box-shadow: 0 1px 0 hsla(0,0%,100%,.2) inset,
-              0 0 0 1px hsla(0,0%,100%,.1) inset,
-              0 1px 0 hsla(210,54%,20%,.03);
-}
-
-#newtab-search-text + #newtab-search-submit:hover {
-  background-image: url("chrome://browser/skin/search-arrow-go.svg#search-arrow-go-inverted"), linear-gradient(#4cb1ff, #1793e5);
-  box-shadow: 0 1px 0 hsla(0,0%,100%,.2) inset,
-              0 0 0 1px hsla(0,0%,100%,.1) inset,
-              0 1px 0 hsla(210,54%,20%,.03),
-              0 0 4px hsla(206,100%,20%,.2);
-}
-
-#newtab-search-text + #newtab-search-submit:hover:active {
-  box-shadow: 0 1px 1px hsla(211,79%,6%,.1) inset,
-              0 0 1px hsla(211,79%,6%,.2) inset;
-  transition-duration: 0ms;
-}
-
-#newtab-search-text:focus + #newtab-search-submit:dir(rtl),
-#newtab-search-text[keepfocus] + #newtab-search-submit:dir(rtl),
-#newtab-search-text[autofocus] + #newtab-search-submit:dir(rtl),
-#newtab-search-text + #newtab-search-submit:dir(rtl):hover {
-  background-image: url("chrome://browser/skin/search-arrow-go.svg#search-arrow-go-rtl-inverted"), linear-gradient(#4cb1ff, #1793e5);
-}
-
-/* CUSTOMIZE */
-#newtab-customize-overlay {
-  opacity: 0;
-  display: none;
-  width: 100%;
-  height: 100%;
-  background: #F9F9F9;
-  z-index: 100;
-  position: fixed;
-  transition: opacity .07s linear;
-}
-
-.newtab-customize-panel-container {
-  position: absolute;
-  margin-right: 40px;
-  right: 0;
-}
-
-.newtab-customize-panel-container:dir(rtl) {
-  right: auto;
-  left: 0;
-}
-
-#newtab-customize-panel {
-  z-index: 999;
-  margin-top: 55px;
-  min-width: 270px;
-  position: absolute;
-  top: 100%;
-  right: -25px;
-  filter: drop-shadow(0 0 1px rgba(0,0,0,0.4)) drop-shadow(0 3px 4px rgba(0,0,0,0.4));
-  transition: all 200ms ease-in-out;
-  transform-origin: top right;
-  transform: translate(-30px, -20px) scale(0) translate(30px, 20px);
-}
-
-#newtab-customize-panel:dir(rtl) {
-  transform-origin: 40px top 20px;
-}
-
-#newtab-customize-panel:dir(rtl),
-#newtab-customize-panel-anchor:dir(rtl) {
-  left: 15px;
-  right: auto;
-}
-
-#newtab-customize-panel[open="true"] {
-  transform: translate(-30px, -20px) scale(1) translate(30px, 20px);
-}
-
-#newtab-customize-panel-anchor {
-  width: 18px;
-  height: 18px;
-  background-color: white;
-  transform: rotate(45deg);
-  position: absolute;
-  top: -6px;
-  right: 15px;
-}
-
-#newtab-customize-title {
-  color: #7A7A7A;
-  font-size: 14px;
-  background-color: #FFFFFF;
-  line-height: 25px;
-  padding: 15px;
-  font-weight: 600;
-  cursor: default;
-  border-radius: 5px 5px 0px 0px;
-  max-width: 300px;
-  overflow: hidden;
-  display: table-cell;
-  border-top: none;
-}
-
-#newtab-customize-panel-inner-wrapper {
-  background-color: #FFFFFF;
-  border-radius: 6px;
-  overflow: hidden;
-}
-
-#newtab-customize-title > label {
-  cursor: default;
-}
-
-#newtab-customize-panel > .panel-arrowcontainer > .panel-arrowcontent {
-  padding: 0;
-}
-
-.newtab-customize-panel-item {
-  line-height: 25px;
-  padding: 15px;
-  padding-inline-start: 40px;
-  font-size: 14px;
-  cursor: pointer;
-  max-width: 300px;
-}
-
-.newtab-customize-panel-item:not(:first-child) {
-  border-top: 1px solid threedshadow;
-}
-
-.newtab-customize-panel-subitem > label,
-.newtab-customize-panel-item > label,
-.newtab-customize-complex-option {
-  padding: 0;
-  margin: 0;
-  cursor: pointer;
-}
-
-.newtab-customize-panel-item,
-.newtab-customize-complex-option {
-  display: block;
-  text-align: start;
-  background-color: #F9F9F9;
-}
-
-.newtab-customize-panel-item[selected]:-moz-locale-dir(rtl) {
-  background-position: right 15px center;
-}
-
-.newtab-customize-complex-option:hover > .selectable:not([selected]):-moz-locale-dir(rtl),
-.selectable:not([selected]):hover:-moz-locale-dir(rtl) {
-  background-position: right 15px center;
-}
-
-.newtab-customize-panel-item:not([selected]),
-.newtab-customize-panel-subitem:not([selected]){
-  color: #7A7A7A;
-}
-
-.newtab-customize-panel-item:not([selected]):hover {
-  color: #FFFFFF;
-  background-color: #4A90E2
-}
-
-.newtab-customize-complex-option:hover > .selectable:not([selected]),
-.selectable:not([selected]):hover {
-  background: url("chrome://global/skin/menu/shared-menu-check-hover.svg") no-repeat #FFFFFF;
-  background-size: 16px 16px;
-  background-position: 15px 15px;
-  color: #171F26;
-}
-
-.newtab-customize-complex-option:hover > .selectable:not([selected]) + .newtab-customize-panel-subitem {
-  background-color: #FFFFFF;
-}
-
-.newtab-customize-panel-item[selected] {
-  background: url("chrome://global/skin/menu/shared-menu-check-active.svg") no-repeat transparent;
-  background-size: 16px 16px;
-  background-position: 15px 15px;
-  color: black;
-  font-weight: 600;
-}
-
-.newtab-customize-panel-subitem > .checkbox {
-  width: 18px;
-  height: 18px;
-  background-color: #FFFFFF;
-  border: solid 1px threedshadow;
-}
-
-.newtab-customize-panel-subitem[selected] > .checkbox {
-  background: url("chrome://global/skin/menu/shared-menu-check-black.svg") no-repeat #FFFFFF;
-  background-size: 9px 9px;
-  background-position: center;
-  color: #333333;
-}
-
-.newtab-customize-panel-subitem {
-  font-size: 12px;
-  padding: 0px 15px 15px 15px;
-  padding-inline-start: 40px;
-  display: block;
-  max-width: 300px;
-}
-
-.newtab-customize-panel-subitem > label {
-  padding: 0px 10px;
-  line-height: 20px;
-  vertical-align: middle;
-  max-width: 225px;
-}
-
-.newtab-customize-panel-superitem {
-  line-height: 20px;
-  border-bottom: medium none !important;
-  padding: 15px 15px 10px 15px;
-  padding-inline-start: 40px;
-  border-top: 1px solid threedshadow;
-}
-
-.contentSearchSuggestionTable {
-  font: message-box;
-  font-size: 16px;
-}
diff --git a/application/basilisk/base/content/newtab/newTab.js b/application/basilisk/base/content/newtab/newTab.js
deleted file mode 100644
index 1731edadc..000000000
--- a/application/basilisk/base/content/newtab/newTab.js
+++ /dev/null
@@ -1,70 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-var Cu = Components.utils;
-var Ci = Components.interfaces;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/PageThumbs.jsm");
-Cu.import("resource://gre/modules/BackgroundPageThumbs.jsm");
-Cu.import("resource://gre/modules/NewTabUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "Rect",
-  "resource://gre/modules/Geometry.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
-  "resource://gre/modules/PrivateBrowsingUtils.jsm");
-
-var {
-  links: gLinks,
-  allPages: gAllPages,
-  linkChecker: gLinkChecker,
-  pinnedLinks: gPinnedLinks,
-  blockedLinks: gBlockedLinks,
-  gridPrefs: gGridPrefs
-} = NewTabUtils;
-
-XPCOMUtils.defineLazyGetter(this, "gStringBundle", function() {
-  return Services.strings.
-    createBundle("chrome://browser/locale/newTab.properties");
-});
-
-function newTabString(name, args) {
-  let stringName = "newtab." + name;
-  if (!args) {
-    return gStringBundle.GetStringFromName(stringName);
-  }
-  return gStringBundle.formatStringFromName(stringName, args, args.length);
-}
-
-function inPrivateBrowsingMode() {
-  return PrivateBrowsingUtils.isContentWindowPrivate(window);
-}
-
-const HTML_NAMESPACE = "http://www.w3.org/1999/xhtml";
-const XUL_NAMESPACE = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
-
-const TILES_EXPLAIN_LINK = "https://support.mozilla.org/kb/how-do-tiles-work-firefox";
-const TILES_INTRO_LINK = "https://www.mozilla.org/firefox/tiles/";
-const TILES_PRIVACY_LINK = "https://www.mozilla.org/privacy/";
-
-#include transformations.js
-#include page.js
-#include grid.js
-#include cells.js
-#include sites.js
-#include drag.js
-#include dragDataHelper.js
-#include drop.js
-#include dropTargetShim.js
-#include dropPreview.js
-#include updater.js
-#include undo.js
-#include search.js
-#include customize.js
-
-// Everything is loaded. Initialize the New Tab Page.
-gPage.init();
diff --git a/application/basilisk/base/content/newtab/newTab.xhtml b/application/basilisk/base/content/newtab/newTab.xhtml
deleted file mode 100644
index 7de1ff3d4..000000000
--- a/application/basilisk/base/content/newtab/newTab.xhtml
+++ /dev/null
@@ -1,88 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-
-<!DOCTYPE html [
-  <!ENTITY % newTabDTD SYSTEM "chrome://browser/locale/newTab.dtd">
-  %newTabDTD;
-  <!ENTITY % browserDTD SYSTEM "chrome://browser/locale/browser.dtd">
-  %browserDTD;
-  <!ENTITY % globalDTD SYSTEM "chrome://global/locale/global.dtd">
-  %globalDTD;
-]>
-
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <title>&newtab.pageTitle;</title>
-
-  <link rel="stylesheet" type="text/css" media="all" href="chrome://global/skin/" />
-  <link rel="stylesheet" type="text/css" media="all" href="chrome://browser/content/contentSearchUI.css" />
-  <link rel="stylesheet" type="text/css" media="all" href="chrome://browser/content/newtab/newTab.css" />
-  <link rel="stylesheet" type="text/css" media="all" href="chrome://browser/skin/newtab/newTab.css" />
-</head>
-
-<body dir="&locale.dir;">
-  <div id="newtab-customize-overlay"></div>
-
-  <div class="newtab-customize-panel-container">
-    <div id="newtab-customize-panel" orient="vertical">
-        <div id="newtab-customize-panel-anchor"></div>
-        <div id="newtab-customize-panel-inner-wrapper">
-          <div id="newtab-customize-title" class="newtab-customize-panel-item">
-            <label>&newtab.customize.cog.title2;</label>
-          </div>
-          <div id="newtab-customize-classic" class="newtab-customize-panel-item selectable">
-            <label>&newtab.customize.classic;</label>
-          </div>
-          <div id="newtab-customize-blank" class="newtab-customize-panel-item selectable">
-            <label>&newtab.customize.blank2;</label>
-          </div>
-          <div id="newtab-customize-learn" class="newtab-customize-panel-item">
-            <label>&newtab.customize.cog.learn;</label>
-          </div>
-        </div>
-    </div>
-  </div>
-
-  <div id="newtab-vertical-margin">
-    <div id="newtab-margin-top"/>
-
-    <div id="newtab-margin-undo-container">
-      <div id="newtab-undo-container" undo-disabled="true">
-        <label id="newtab-undo-label">&newtab.undo.removedLabel;</label>
-        <button id="newtab-undo-button" tabindex="-1"
-                class="newtab-undo-button">&newtab.undo.undoButton;</button>
-        <button id="newtab-undo-restore-button" tabindex="-1"
-                class="newtab-undo-button">&newtab.undo.restoreButton;</button>
-        <button id="newtab-undo-close-button" tabindex="-1" title="&newtab.undo.closeTooltip;"/>
-      </div>
-    </div>
-
-    <div id="newtab-search-container">
-      <div id="newtab-search-form">
-        <div id="newtab-search-icon"/>
-        <input type="text" name="q" value="" id="newtab-search-text"
-             aria-label="&contentSearchInput.label;" maxlength="256"/>
-        <input id="newtab-search-submit" type="button"
-             title="&contentSearchSubmit.tooltip;"/>
-      </div>
-    </div>
-
-    <div id="newtab-horizontal-margin">
-      <div class="newtab-side-margin"/>
-      <div id="newtab-grid">
-      </div>
-      <div class="newtab-side-margin"/>
-    </div>
-
-    <div id="newtab-margin-bottom"/>
-  </div>
-  <input id="newtab-customize-button" type="button" dir="&locale.dir;"
-         value="&#x2699;"
-         title="&newtab.customize.title;"/>
-</body>
-<script type="text/javascript;version=1.8" src="chrome://browser/content/contentSearchUI.js"/>
-<script type="text/javascript;version=1.8" src="chrome://browser/content/newtab/newTab.js"/>
-</html>
diff --git a/application/basilisk/base/content/newtab/page.js b/application/basilisk/base/content/newtab/page.js
deleted file mode 100644
index 7c19a9827..000000000
--- a/application/basilisk/base/content/newtab/page.js
+++ /dev/null
@@ -1,240 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-// The amount of time we wait while coalescing updates for hidden pages.
-const SCHEDULE_UPDATE_TIMEOUT_MS = 1000;
-
-/**
- * This singleton represents the whole 'New Tab Page' and takes care of
- * initializing all its components.
- */
-var gPage = {
-  /**
-   * Initializes the page.
-   */
-  init: function Page_init() {
-    // Add ourselves to the list of pages to receive notifications.
-    gAllPages.register(this);
-
-    // Listen for 'unload' to unregister this page.
-    addEventListener("unload", this, false);
-
-    // XXX bug 991111 - Not all click events are correctly triggered when
-    // listening from xhtml nodes -- in particular middle clicks on sites, so
-    // listen from the xul window and filter then delegate
-    addEventListener("click", this, false);
-
-    // Check if the new tab feature is enabled.
-    let enabled = gAllPages.enabled;
-    if (enabled)
-      this._init();
-
-    this._updateAttributes(enabled);
-
-    // Initialize customize controls.
-    gCustomize.init();
-  },
-
-  /**
-   * Listens for notifications specific to this page.
-   */
-  observe: function Page_observe(aSubject, aTopic, aData) {
-    if (aTopic == "nsPref:changed") {
-      gCustomize.updateSelected();
-
-      let enabled = gAllPages.enabled;
-      this._updateAttributes(enabled);
-
-      // Initialize the whole page if we haven't done that, yet.
-      if (enabled) {
-        this._init();
-      } else {
-        gUndoDialog.hide();
-      }
-    } else if (aTopic == "page-thumbnail:create" && gGrid.ready) {
-      for (let site of gGrid.sites) {
-        if (site && site.url === aData) {
-          site.refreshThumbnail();
-        }
-      }
-    }
-  },
-
-  /**
-   * Updates the page's grid right away for visible pages. If the page is
-   * currently hidden, i.e. in a background tab or in the preloader, then we
-   * batch multiple update requests and refresh the grid once after a short
-   * delay. Accepts a single parameter the specifies the reason for requesting
-   * a page update. The page may decide to delay or prevent a requested updated
-   * based on the given reason.
-   */
-  update(reason = "") {
-    // Update immediately if we're visible.
-    if (!document.hidden) {
-      if (gGrid.ready) {
-        gGrid.refresh();
-      }
-
-      return;
-    }
-
-    // Bail out if we scheduled before.
-    if (this._scheduleUpdateTimeout) {
-      return;
-    }
-
-    this._scheduleUpdateTimeout = setTimeout(() => {
-      // Refresh if the grid is ready.
-      if (gGrid.ready) {
-        gGrid.refresh();
-      }
-
-      this._scheduleUpdateTimeout = null;
-    }, SCHEDULE_UPDATE_TIMEOUT_MS);
-  },
-
-  /**
-   * Internally initializes the page. This runs only when/if the feature
-   * is/gets enabled.
-   */
-  _init: function Page_init() {
-    if (this._initialized)
-      return;
-
-    this._initialized = true;
-
-    // Set submit button label for when CSS background are disabled (e.g.
-    // high contrast mode).
-    document.getElementById("newtab-search-submit").value =
-      document.body.getAttribute("dir") == "ltr" ? "\u25B6" : "\u25C0";
-
-    // Initialize search.
-    gSearch.init();
-
-    if (document.hidden) {
-      addEventListener("visibilitychange", this);
-    } else {
-      setTimeout(() => this.onPageFirstVisible());
-    }
-
-    // Initialize and render the grid.
-    gGrid.init();
-
-    // Initialize the drop target shim.
-    gDropTargetShim.init();
-
-#ifdef XP_MACOSX
-    // Workaround to prevent a delay on MacOSX due to a slow drop animation.
-    document.addEventListener("dragover", this, false);
-    document.addEventListener("drop", this, false);
-#endif
-  },
-
-  /**
-   * Updates the 'page-disabled' attributes of the respective DOM nodes.
-   * @param aValue Whether the New Tab Page is enabled or not.
-   */
-  _updateAttributes: function Page_updateAttributes(aValue) {
-    // Set the nodes' states.
-    let nodeSelector = "#newtab-grid, #newtab-search-container";
-    for (let node of document.querySelectorAll(nodeSelector)) {
-      if (aValue)
-        node.removeAttribute("page-disabled");
-      else
-        node.setAttribute("page-disabled", "true");
-    }
-
-    // Enables/disables the control and link elements.
-    let inputSelector = ".newtab-control, .newtab-link";
-    for (let input of document.querySelectorAll(inputSelector)) {
-      if (aValue)
-        input.removeAttribute("tabindex");
-      else
-        input.setAttribute("tabindex", "-1");
-    }
-  },
-
-  /**
-   * Handles unload event
-   */
-  _handleUnloadEvent: function Page_handleUnloadEvent() {
-    gAllPages.unregister(this);
-  },
-
-  /**
-   * Handles all page events.
-   */
-  handleEvent: function Page_handleEvent(aEvent) {
-    switch (aEvent.type) {
-      case "load":
-        this.onPageVisibleAndLoaded();
-        break;
-      case "unload":
-        this._handleUnloadEvent();
-        break;
-      case "click":
-        let {button, target} = aEvent;
-        // Go up ancestors until we find a Site or not
-        while (target) {
-          if (target.hasOwnProperty("_newtabSite")) {
-            target._newtabSite.onClick(aEvent);
-            break;
-          }
-          target = target.parentNode;
-        }
-        break;
-      case "dragover":
-        if (gDrag.isValid(aEvent) && gDrag.draggedSite)
-          aEvent.preventDefault();
-        break;
-      case "drop":
-        if (gDrag.isValid(aEvent) && gDrag.draggedSite) {
-          aEvent.preventDefault();
-          aEvent.stopPropagation();
-        }
-        break;
-      case "visibilitychange":
-        // Cancel any delayed updates for hidden pages now that we're visible.
-        if (this._scheduleUpdateTimeout) {
-          clearTimeout(this._scheduleUpdateTimeout);
-          this._scheduleUpdateTimeout = null;
-
-          // An update was pending so force an update now.
-          this.update();
-        }
-
-        setTimeout(() => this.onPageFirstVisible());
-        removeEventListener("visibilitychange", this);
-        break;
-    }
-  },
-
-  onPageFirstVisible: function () {
-    // Record another page impression.
-    Services.telemetry.getHistogramById("NEWTAB_PAGE_SHOWN").add(true);
-
-    for (let site of gGrid.sites) {
-      if (site) {
-        // The site may need to modify and/or re-render itself if
-        // something changed after newtab was created by preloader.
-        // For example, the suggested tile endTime may have passed.
-        site.onFirstVisible();
-      }
-    }
-
-    // save timestamp to compute page life-span delta
-    this._firstVisibleTime = Date.now();
-
-    if (document.readyState == "complete") {
-      this.onPageVisibleAndLoaded();
-    } else {
-      addEventListener("load", this);
-    }
-  },
-
-  onPageVisibleAndLoaded() {
-  }
-};
diff --git a/application/basilisk/base/content/newtab/search.js b/application/basilisk/base/content/newtab/search.js
deleted file mode 100644
index cbbb6e243..000000000
--- a/application/basilisk/base/content/newtab/search.js
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-var gSearch = {
-  init: function () {
-    document.getElementById("newtab-search-submit")
-            .addEventListener("click", e => this._contentSearchController.search(e));
-    let textbox = document.getElementById("newtab-search-text");
-    this._contentSearchController =
-      new ContentSearchUIController(textbox, textbox.parentNode, "newtab", "newtab");
-  },
-};
diff --git a/application/basilisk/base/content/newtab/sites.js b/application/basilisk/base/content/newtab/sites.js
deleted file mode 100644
index 00f81869a..000000000
--- a/application/basilisk/base/content/newtab/sites.js
+++ /dev/null
@@ -1,343 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-const THUMBNAIL_PLACEHOLDER_ENABLED =
-  Services.prefs.getBoolPref("browser.newtabpage.thumbnailPlaceholder");
-
-/**
- * This class represents a site that is contained in a cell and can be pinned,
- * moved around or deleted.
- */
-function Site(aNode, aLink) {
-  this._node = aNode;
-  this._node._newtabSite = this;
-
-  this._link = aLink;
-
-  this._render();
-  this._addEventHandlers();
-}
-
-Site.prototype = {
-  /**
-   * The site's DOM node.
-   */
-  get node() { return this._node; },
-
-  /**
-   * The site's link.
-   */
-  get link() { return this._link; },
-
-  /**
-   * The url of the site's link.
-   */
-  get url() { return this.link.url; },
-
-  /**
-   * The title of the site's link.
-   */
-  get title() { return this.link.title || this.link.url; },
-
-  /**
-   * The site's parent cell.
-   */
-  get cell() {
-    let parentNode = this.node.parentNode;
-    return parentNode && parentNode._newtabCell;
-  },
-
-  /**
-   * Pins the site on its current or a given index.
-   * @param aIndex The pinned index (optional).
-   * @return true if link changed type after pin
-   */
-  pin: function Site_pin(aIndex) {
-    if (typeof aIndex == "undefined")
-      aIndex = this.cell.index;
-
-    this._updateAttributes(true);
-    let changed = gPinnedLinks.pin(this._link, aIndex);
-    if (changed) {
-      // render site again
-      this._render();
-    }
-    return changed;
-  },
-
-  /**
-   * Unpins the site and calls the given callback when done.
-   */
-  unpin: function Site_unpin() {
-    if (this.isPinned()) {
-      this._updateAttributes(false);
-      gPinnedLinks.unpin(this._link);
-      gUpdater.updateGrid();
-    }
-  },
-
-  /**
-   * Checks whether this site is pinned.
-   * @return Whether this site is pinned.
-   */
-  isPinned: function Site_isPinned() {
-    return gPinnedLinks.isPinned(this._link);
-  },
-
-  /**
-   * Blocks the site (removes it from the grid) and calls the given callback
-   * when done.
-   */
-  block: function Site_block() {
-    if (!gBlockedLinks.isBlocked(this._link)) {
-      gUndoDialog.show(this);
-      gBlockedLinks.block(this._link);
-      gUpdater.updateGrid();
-    }
-  },
-
-  /**
-   * Gets the DOM node specified by the given query selector.
-   * @param aSelector The query selector.
-   * @return The DOM node we found.
-   */
-  _querySelector: function Site_querySelector(aSelector) {
-    return this.node.querySelector(aSelector);
-  },
-
-  /**
-   * Updates attributes for all nodes which status depends on this site being
-   * pinned or unpinned.
-   * @param aPinned Whether this site is now pinned or unpinned.
-   */
-  _updateAttributes: function (aPinned) {
-    let control = this._querySelector(".newtab-control-pin");
-
-    if (aPinned) {
-      this.node.setAttribute("pinned", true);
-      control.setAttribute("title", newTabString("unpin"));
-    } else {
-      this.node.removeAttribute("pinned");
-      control.setAttribute("title", newTabString("pin"));
-    }
-  },
-
-  _newTabString: function(str, substrArr) {
-    let regExp = /%[0-9]\$S/g;
-    let matches;
-    while ((matches = regExp.exec(str))) {
-      let match = matches[0];
-      let index = match.charAt(1); // Get the digit in the regExp.
-      str = str.replace(match, substrArr[index - 1]);
-    }
-    return str;
-  },
-
-  /**
-   * Checks for and modifies link at campaign end time
-   */
-  _checkLinkEndTime: function Site_checkLinkEndTime() {
-    if (this.link.endTime && this.link.endTime < Date.now()) {
-       let oldUrl = this.url;
-       // chop off the path part from url
-       this.link.url = Services.io.newURI(this.url, null, null).resolve("/");
-       // clear supplied images - this triggers thumbnail download for new url
-       delete this.link.imageURI;
-       // remove endTime to avoid further time checks
-       delete this.link.endTime;
-       gPinnedLinks.replace(oldUrl, this.link);
-    }
-  },
-
-  /**
-   * Renders the site's data (fills the HTML fragment).
-   */
-  _render: function Site_render() {
-    // first check for end time, as it may modify the link
-    this._checkLinkEndTime();
-    // setup display variables
-    let url = this.url;
-    let title = this.link.type == "history" ? this.link.baseDomain : this.title;
-    let tooltip = (this.title == url ? this.title : this.title + "\n" + url);
-
-    let link = this._querySelector(".newtab-link");
-    link.setAttribute("title", tooltip);
-    link.setAttribute("href", url);
-    this.node.setAttribute("type", this.link.type);
-
-    let titleNode = this._querySelector(".newtab-title");
-    titleNode.textContent = title;
-    if (this.link.titleBgColor) {
-      titleNode.style.backgroundColor = this.link.titleBgColor;
-    }
-
-    if (this.isPinned())
-      this._updateAttributes(true);
-    // Capture the page if the thumbnail is missing, which will cause page.js
-    // to be notified and call our refreshThumbnail() method.
-    this.captureIfMissing();
-    // but still display whatever thumbnail might be available now.
-    this.refreshThumbnail();
-  },
-
-  /**
-   * Called when the site's tab becomes visible for the first time.
-   * Since the newtab may be preloaded long before it's displayed,
-   * check for changed conditions and re-render if needed
-   */
-  onFirstVisible: function Site_onFirstVisible() {
-    if (this.link.endTime && this.link.endTime < Date.now()) {
-      // site needs to change landing url and background image
-      this._render();
-    }
-    else {
-      this.captureIfMissing();
-    }
-  },
-
-  /**
-   * Captures the site's thumbnail in the background, but only if there's no
-   * existing thumbnail and the page allows background captures.
-   */
-  captureIfMissing: function Site_captureIfMissing() {
-    if (!document.hidden && !this.link.imageURI) {
-      BackgroundPageThumbs.captureIfMissing(this.url);
-    }
-  },
-
-  /**
-   * Refreshes the thumbnail for the site.
-   */
-  refreshThumbnail: function Site_refreshThumbnail() {
-    // Only enhance tiles if that feature is turned on
-    let link = this.link;
-
-    let thumbnail = this._querySelector(".newtab-thumbnail.thumbnail");
-    if (link.bgColor) {
-      thumbnail.style.backgroundColor = link.bgColor;
-    }
-    let uri = link.imageURI || PageThumbs.getThumbnailURL(this.url);
-    thumbnail.style.backgroundImage = 'url("' + uri + '")';
-
-    if (THUMBNAIL_PLACEHOLDER_ENABLED &&
-        link.type == "history" &&
-        link.baseDomain) {
-      let placeholder = this._querySelector(".newtab-thumbnail.placeholder");
-      let charCodeSum = 0;
-      for (let c of link.baseDomain) {
-        charCodeSum += c.charCodeAt(0);
-      }
-      const COLORS = 16;
-      let hue = Math.round((charCodeSum % COLORS) / COLORS * 360);
-      placeholder.style.backgroundColor = "hsl(" + hue + ",80%,40%)";
-      placeholder.textContent = link.baseDomain.substr(0,1).toUpperCase();
-    }
-  },
-
-  _ignoreHoverEvents: function(element) {
-    element.addEventListener("mouseover", () => {
-      this.cell.node.setAttribute("ignorehover", "true");
-    });
-    element.addEventListener("mouseout", () => {
-      this.cell.node.removeAttribute("ignorehover");
-    });
-  },
-
-  /**
-   * Adds event handlers for the site and its buttons.
-   */
-  _addEventHandlers: function Site_addEventHandlers() {
-    // Register drag-and-drop event handlers.
-    this._node.addEventListener("dragstart", this, false);
-    this._node.addEventListener("dragend", this, false);
-    this._node.addEventListener("mouseover", this, false);
-  },
-
-  /**
-   * Speculatively opens a connection to the current site.
-   */
-  _speculativeConnect: function Site_speculativeConnect() {
-    let sc = Services.io.QueryInterface(Ci.nsISpeculativeConnect);
-    let uri = Services.io.newURI(this.url, null, null);
-    try {
-      // This can throw for certain internal URLs, when they wind up in
-      // about:newtab. Be sure not to propagate the error.
-      sc.speculativeConnect(uri, null);
-    } catch (e) {}
-  },
-
-  /**
-   * Record interaction with site using telemetry.
-   */
-  _recordSiteClicked: function Site_recordSiteClicked(aIndex) {
-    if (Services.prefs.prefHasUserValue("browser.newtabpage.rows") ||
-        Services.prefs.prefHasUserValue("browser.newtabpage.columns") ||
-        aIndex > 8) {
-      // We only want to get indices for the default configuration, everything
-      // else goes in the same bucket.
-      aIndex = 9;
-    }
-    Services.telemetry.getHistogramById("NEWTAB_PAGE_SITE_CLICKED")
-                      .add(aIndex);
-  },
-
-  /**
-   * Handles site click events.
-   */
-  onClick: function Site_onClick(aEvent) {
-    let action;
-    let pinned = this.isPinned();
-    let tileIndex = this.cell.index;
-    let {button, target} = aEvent;
-
-    // Handle tile/thumbnail link click
-    if (target.classList.contains("newtab-link") ||
-        target.parentElement.classList.contains("newtab-link")) {
-      // Record for primary and middle clicks
-      if (button == 0 || button == 1) {
-        this._recordSiteClicked(tileIndex);
-        action = "click";
-      }
-    }
-    // Only handle primary clicks for the remaining targets
-    else if (button == 0) {
-      aEvent.preventDefault();
-      if (target.classList.contains("newtab-control-block")) {
-        this.block();
-        action = "block";
-      }
-      else if (pinned && target.classList.contains("newtab-control-pin")) {
-        this.unpin();
-        action = "unpin";
-      }
-      else if (!pinned && target.classList.contains("newtab-control-pin")) {
-        if (this.pin()) {
-          // link has changed - update rest of the pages
-          gAllPages.update(gPage);
-        }
-        action = "pin";
-      }
-    }
-  },
-
-  /**
-   * Handles all site events.
-   */
-  handleEvent: function Site_handleEvent(aEvent) {
-    switch (aEvent.type) {
-      case "mouseover":
-        this._node.removeEventListener("mouseover", this, false);
-        this._speculativeConnect();
-        break;
-      case "dragstart":
-        gDrag.start(this, aEvent);
-        break;
-      case "dragend":
-        gDrag.end(this, aEvent);
-        break;
-    }
-  }
-};
diff --git a/application/basilisk/base/content/newtab/transformations.js b/application/basilisk/base/content/newtab/transformations.js
deleted file mode 100644
index f7db0ad84..000000000
--- a/application/basilisk/base/content/newtab/transformations.js
+++ /dev/null
@@ -1,270 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-/**
- * This singleton allows to transform the grid by repositioning a site's node
- * in the DOM and by showing or hiding the node. It additionally provides
- * convenience methods to work with a site's DOM node.
- */
-var gTransformation = {
-  /**
-   * Returns the width of the left and top border of a cell. We need to take it
-   * into account when measuring and comparing site and cell positions.
-   */
-  get _cellBorderWidths() {
-    let cstyle = window.getComputedStyle(gGrid.cells[0].node, null);
-    let widths = {
-      left: parseInt(cstyle.getPropertyValue("border-left-width")),
-      top: parseInt(cstyle.getPropertyValue("border-top-width"))
-    };
-
-    // Cache this value, overwrite the getter.
-    Object.defineProperty(this, "_cellBorderWidths",
-                          {value: widths, enumerable: true});
-
-    return widths;
-  },
-
-  /**
-   * Gets a DOM node's position.
-   * @param aNode The DOM node.
-   * @return A Rect instance with the position.
-   */
-  getNodePosition: function Transformation_getNodePosition(aNode) {
-    let {left, top, width, height} = aNode.getBoundingClientRect();
-    return new Rect(left + scrollX, top + scrollY, width, height);
-  },
-
-  /**
-   * Fades a given node from zero to full opacity.
-   * @param aNode The node to fade.
-   * @param aCallback The callback to call when finished.
-   */
-  fadeNodeIn: function Transformation_fadeNodeIn(aNode, aCallback) {
-    this._setNodeOpacity(aNode, 1, function () {
-      // Clear the style property.
-      aNode.style.opacity = "";
-
-      if (aCallback)
-        aCallback();
-    });
-  },
-
-  /**
-   * Fades a given node from full to zero opacity.
-   * @param aNode The node to fade.
-   * @param aCallback The callback to call when finished.
-   */
-  fadeNodeOut: function Transformation_fadeNodeOut(aNode, aCallback) {
-    this._setNodeOpacity(aNode, 0, aCallback);
-  },
-
-  /**
-   * Fades a given site from zero to full opacity.
-   * @param aSite The site to fade.
-   * @param aCallback The callback to call when finished.
-   */
-  showSite: function Transformation_showSite(aSite, aCallback) {
-    this.fadeNodeIn(aSite.node, aCallback);
-  },
-
-  /**
-   * Fades a given site from full to zero opacity.
-   * @param aSite The site to fade.
-   * @param aCallback The callback to call when finished.
-   */
-  hideSite: function Transformation_hideSite(aSite, aCallback) {
-    this.fadeNodeOut(aSite.node, aCallback);
-  },
-
-  /**
-   * Allows to set a site's position.
-   * @param aSite The site to re-position.
-   * @param aPosition The desired position for the given site.
-   */
-  setSitePosition: function Transformation_setSitePosition(aSite, aPosition) {
-    let style = aSite.node.style;
-    let {top, left} = aPosition;
-
-    style.top = top + "px";
-    style.left = left + "px";
-  },
-
-  /**
-   * Freezes a site in its current position by positioning it absolute.
-   * @param aSite The site to freeze.
-   */
-  freezeSitePosition: function Transformation_freezeSitePosition(aSite) {
-    if (this._isFrozen(aSite))
-      return;
-
-    let style = aSite.node.style;
-    let comp = getComputedStyle(aSite.node, null);
-    style.width = comp.getPropertyValue("width");
-    style.height = comp.getPropertyValue("height");
-
-    aSite.node.setAttribute("frozen", "true");
-    this.setSitePosition(aSite, this.getNodePosition(aSite.node));
-  },
-
-  /**
-   * Unfreezes a site by removing its absolute positioning.
-   * @param aSite The site to unfreeze.
-   */
-  unfreezeSitePosition: function Transformation_unfreezeSitePosition(aSite) {
-    if (!this._isFrozen(aSite))
-      return;
-
-    let style = aSite.node.style;
-    style.left = style.top = style.width = style.height = "";
-    aSite.node.removeAttribute("frozen");
-  },
-
-  /**
-   * Slides the given site to the target node's position.
-   * @param aSite The site to move.
-   * @param aTarget The slide target.
-   * @param aOptions Set of options (see below).
-   *        unfreeze - unfreeze the site after sliding
-   *        callback - the callback to call when finished
-   */
-  slideSiteTo: function Transformation_slideSiteTo(aSite, aTarget, aOptions) {
-    let currentPosition = this.getNodePosition(aSite.node);
-    let targetPosition = this.getNodePosition(aTarget.node)
-    let callback = aOptions && aOptions.callback;
-
-    let self = this;
-
-    function finish() {
-      if (aOptions && aOptions.unfreeze)
-        self.unfreezeSitePosition(aSite);
-
-      if (callback)
-        callback();
-    }
-
-    // We need to take the width of a cell's border into account.
-    targetPosition.left += this._cellBorderWidths.left;
-    targetPosition.top += this._cellBorderWidths.top;
-
-    // Nothing to do here if the positions already match.
-    if (currentPosition.left == targetPosition.left &&
-        currentPosition.top == targetPosition.top) {
-      finish();
-    } else {
-      this.setSitePosition(aSite, targetPosition);
-      this._whenTransitionEnded(aSite.node, ["left", "top"], finish);
-    }
-  },
-
-  /**
-   * Rearranges a given array of sites and moves them to their new positions or
-   * fades in/out new/removed sites.
-   * @param aSites An array of sites to rearrange.
-   * @param aOptions Set of options (see below).
-   *        unfreeze - unfreeze the site after rearranging
-   *        callback - the callback to call when finished
-   */
-  rearrangeSites: function Transformation_rearrangeSites(aSites, aOptions) {
-    let batch = [];
-    let cells = gGrid.cells;
-    let callback = aOptions && aOptions.callback;
-    let unfreeze = aOptions && aOptions.unfreeze;
-
-    aSites.forEach(function (aSite, aIndex) {
-      // Do not re-arrange empty cells or the dragged site.
-      if (!aSite || aSite == gDrag.draggedSite)
-        return;
-
-      batch.push(new Promise(resolve => {
-        if (!cells[aIndex]) {
-          // The site disappeared from the grid, hide it.
-          this.hideSite(aSite, resolve);
-        } else if (this._getNodeOpacity(aSite.node) != 1) {
-          // The site disappeared before but is now back, show it.
-          this.showSite(aSite, resolve);
-        } else {
-          // The site's position has changed, move it around.
-          this._moveSite(aSite, aIndex, {unfreeze: unfreeze, callback: resolve});
-        }
-      }));
-    }, this);
-
-    if (callback) {
-      Promise.all(batch).then(callback);
-    }
-  },
-
-  /**
-   * Listens for the 'transitionend' event on a given node and calls the given
-   * callback.
-   * @param aNode The node that is transitioned.
-   * @param aProperties The properties we'll wait to be transitioned.
-   * @param aCallback The callback to call when finished.
-   */
-  _whenTransitionEnded:
-    function Transformation_whenTransitionEnded(aNode, aProperties, aCallback) {
-
-    let props = new Set(aProperties);
-    aNode.addEventListener("transitionend", function onEnd(e) {
-      if (props.has(e.propertyName)) {
-        aNode.removeEventListener("transitionend", onEnd);
-        aCallback();
-      }
-    });
-  },
-
-  /**
-   * Gets a given node's opacity value.
-   * @param aNode The node to get the opacity value from.
-   * @return The node's opacity value.
-   */
-  _getNodeOpacity: function Transformation_getNodeOpacity(aNode) {
-    let cstyle = window.getComputedStyle(aNode, null);
-    return cstyle.getPropertyValue("opacity");
-  },
-
-  /**
-   * Sets a given node's opacity.
-   * @param aNode The node to set the opacity value for.
-   * @param aOpacity The opacity value to set.
-   * @param aCallback The callback to call when finished.
-   */
-  _setNodeOpacity:
-    function Transformation_setNodeOpacity(aNode, aOpacity, aCallback) {
-
-    if (this._getNodeOpacity(aNode) == aOpacity) {
-      if (aCallback)
-        aCallback();
-    } else {
-      if (aCallback) {
-        this._whenTransitionEnded(aNode, ["opacity"], aCallback);
-      }
-
-      aNode.style.opacity = aOpacity;
-    }
-  },
-
-  /**
-   * Moves a site to the cell with the given index.
-   * @param aSite The site to move.
-   * @param aIndex The target cell's index.
-   * @param aOptions Options that are directly passed to slideSiteTo().
-   */
-  _moveSite: function Transformation_moveSite(aSite, aIndex, aOptions) {
-    this.freezeSitePosition(aSite);
-    this.slideSiteTo(aSite, gGrid.cells[aIndex], aOptions);
-  },
-
-  /**
-   * Checks whether a site is currently frozen.
-   * @param aSite The site to check.
-   * @return Whether the given site is frozen.
-   */
-  _isFrozen: function Transformation_isFrozen(aSite) {
-    return aSite.node.hasAttribute("frozen");
-  }
-};
diff --git a/application/basilisk/base/content/newtab/undo.js b/application/basilisk/base/content/newtab/undo.js
deleted file mode 100644
index b856914d2..000000000
--- a/application/basilisk/base/content/newtab/undo.js
+++ /dev/null
@@ -1,116 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-/**
- * Dialog allowing to undo the removal of single site or to completely restore
- * the grid's original state.
- */
-var gUndoDialog = {
-  /**
-   * The undo dialog's timeout in miliseconds.
-   */
-  HIDE_TIMEOUT_MS: 15000,
-
-  /**
-   * Contains undo information.
-   */
-  _undoData: null,
-
-  /**
-   * Initializes the undo dialog.
-   */
-  init: function UndoDialog_init() {
-    this._undoContainer = document.getElementById("newtab-undo-container");
-    this._undoContainer.addEventListener("click", this, false);
-    this._undoButton = document.getElementById("newtab-undo-button");
-    this._undoCloseButton = document.getElementById("newtab-undo-close-button");
-    this._undoRestoreButton = document.getElementById("newtab-undo-restore-button");
-  },
-
-  /**
-   * Shows the undo dialog.
-   * @param aSite The site that just got removed.
-   */
-  show: function UndoDialog_show(aSite) {
-    if (this._undoData)
-      clearTimeout(this._undoData.timeout);
-
-    this._undoData = {
-      index: aSite.cell.index,
-      wasPinned: aSite.isPinned(),
-      blockedLink: aSite.link,
-      timeout: setTimeout(this.hide.bind(this), this.HIDE_TIMEOUT_MS)
-    };
-
-    this._undoContainer.removeAttribute("undo-disabled");
-    this._undoButton.removeAttribute("tabindex");
-    this._undoCloseButton.removeAttribute("tabindex");
-    this._undoRestoreButton.removeAttribute("tabindex");
-  },
-
-  /**
-   * Hides the undo dialog.
-   */
-  hide: function UndoDialog_hide() {
-    if (!this._undoData)
-      return;
-
-    clearTimeout(this._undoData.timeout);
-    this._undoData = null;
-    this._undoContainer.setAttribute("undo-disabled", "true");
-    this._undoButton.setAttribute("tabindex", "-1");
-    this._undoCloseButton.setAttribute("tabindex", "-1");
-    this._undoRestoreButton.setAttribute("tabindex", "-1");
-  },
-
-  /**
-   * The undo dialog event handler.
-   * @param aEvent The event to handle.
-   */
-  handleEvent: function UndoDialog_handleEvent(aEvent) {
-    switch (aEvent.target.id) {
-      case "newtab-undo-button":
-        this._undo();
-        break;
-      case "newtab-undo-restore-button":
-        this._undoAll();
-        break;
-      case "newtab-undo-close-button":
-        this.hide();
-        break;
-    }
-  },
-
-  /**
-   * Undo the last blocked site.
-   */
-  _undo: function UndoDialog_undo() {
-    if (!this._undoData)
-      return;
-
-    let {index, wasPinned, blockedLink} = this._undoData;
-    gBlockedLinks.unblock(blockedLink);
-
-    if (wasPinned) {
-      gPinnedLinks.pin(blockedLink, index);
-    }
-
-    gUpdater.updateGrid();
-    this.hide();
-  },
-
-  /**
-   * Undo all blocked sites.
-   */
-  _undoAll: function UndoDialog_undoAll() {
-    NewTabUtils.undoAll(function() {
-      gUpdater.updateGrid();
-      this.hide();
-    }.bind(this));
-  }
-};
-
-gUndoDialog.init();
diff --git a/application/basilisk/base/content/newtab/updater.js b/application/basilisk/base/content/newtab/updater.js
deleted file mode 100644
index 2bab74d70..000000000
--- a/application/basilisk/base/content/newtab/updater.js
+++ /dev/null
@@ -1,177 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-/**
- * This singleton provides functionality to update the current grid to a new
- * set of pinned and blocked sites. It adds, moves and removes sites.
- */
-var gUpdater = {
-  /**
-   * Updates the current grid according to its pinned and blocked sites.
-   * This removes old, moves existing and creates new sites to fill gaps.
-   * @param aCallback The callback to call when finished.
-   */
-  updateGrid: function Updater_updateGrid(aCallback) {
-    let links = gLinks.getLinks().slice(0, gGrid.cells.length);
-
-    // Find all sites that remain in the grid.
-    let sites = this._findRemainingSites(links);
-
-    // Remove sites that are no longer in the grid.
-    this._removeLegacySites(sites, () => {
-      // Freeze all site positions so that we can move their DOM nodes around
-      // without any visual impact.
-      this._freezeSitePositions(sites);
-
-      // Move the sites' DOM nodes to their new position in the DOM. This will
-      // have no visual effect as all the sites have been frozen and will
-      // remain in their current position.
-      this._moveSiteNodes(sites);
-
-      // Now it's time to animate the sites actually moving to their new
-      // positions.
-      this._rearrangeSites(sites, () => {
-        // Try to fill empty cells and finish.
-        this._fillEmptyCells(links, aCallback);
-
-        // Update other pages that might be open to keep them synced.
-        gAllPages.update(gPage);
-      });
-    });
-  },
-
-  /**
-   * Takes an array of links and tries to correlate them to sites contained in
-   * the current grid. If no corresponding site can be found (i.e. the link is
-   * new and a site will be created) then just set it to null.
-   * @param aLinks The array of links to find sites for.
-   * @return Array of sites mapped to the given links (can contain null values).
-   */
-  _findRemainingSites: function Updater_findRemainingSites(aLinks) {
-    let map = {};
-
-    // Create a map to easily retrieve the site for a given URL.
-    gGrid.sites.forEach(function (aSite) {
-      if (aSite)
-        map[aSite.url] = aSite;
-    });
-
-    // Map each link to its corresponding site, if any.
-    return aLinks.map(function (aLink) {
-      return aLink && (aLink.url in map) && map[aLink.url];
-    });
-  },
-
-  /**
-   * Freezes the given sites' positions.
-   * @param aSites The array of sites to freeze.
-   */
-  _freezeSitePositions: function Updater_freezeSitePositions(aSites) {
-    aSites.forEach(function (aSite) {
-      if (aSite)
-        gTransformation.freezeSitePosition(aSite);
-    });
-  },
-
-  /**
-   * Moves the given sites' DOM nodes to their new positions.
-   * @param aSites The array of sites to move.
-   */
-  _moveSiteNodes: function Updater_moveSiteNodes(aSites) {
-    let cells = gGrid.cells;
-
-    // Truncate the given array of sites to not have more sites than cells.
-    // This can happen when the user drags a bookmark (or any other new kind
-    // of link) onto the grid.
-    let sites = aSites.slice(0, cells.length);
-
-    sites.forEach(function (aSite, aIndex) {
-      let cell = cells[aIndex];
-      let cellSite = cell.site;
-
-      // The site's position didn't change.
-      if (!aSite || cellSite != aSite) {
-        let cellNode = cell.node;
-
-        // Empty the cell if necessary.
-        if (cellSite)
-          cellNode.removeChild(cellSite.node);
-
-        // Put the new site in place, if any.
-        if (aSite)
-          cellNode.appendChild(aSite.node);
-      }
-    }, this);
-  },
-
-  /**
-   * Rearranges the given sites and slides them to their new positions.
-   * @param aSites The array of sites to re-arrange.
-   * @param aCallback The callback to call when finished.
-   */
-  _rearrangeSites: function Updater_rearrangeSites(aSites, aCallback) {
-    let options = {callback: aCallback, unfreeze: true};
-    gTransformation.rearrangeSites(aSites, options);
-  },
-
-  /**
-   * Removes all sites from the grid that are not in the given links array or
-   * exceed the grid.
-   * @param aSites The array of sites remaining in the grid.
-   * @param aCallback The callback to call when finished.
-   */
-  _removeLegacySites: function Updater_removeLegacySites(aSites, aCallback) {
-    let batch = [];
-
-    // Delete sites that were removed from the grid.
-    gGrid.sites.forEach(function (aSite) {
-      // The site must be valid and not in the current grid.
-      if (!aSite || aSites.indexOf(aSite) != -1)
-        return;
-
-      batch.push(new Promise(resolve => {
-        // Fade out the to-be-removed site.
-        gTransformation.hideSite(aSite, function () {
-          let node = aSite.node;
-
-          // Remove the site from the DOM.
-          node.parentNode.removeChild(node);
-          resolve();
-        });
-      }));
-    });
-
-    Promise.all(batch).then(aCallback);
-  },
-
-  /**
-   * Tries to fill empty cells with new links if available.
-   * @param aLinks The array of links.
-   * @param aCallback The callback to call when finished.
-   */
-  _fillEmptyCells: function Updater_fillEmptyCells(aLinks, aCallback) {
-    let {cells, sites} = gGrid;
-
-    // Find empty cells and fill them.
-    Promise.all(sites.map((aSite, aIndex) => {
-      if (aSite || !aLinks[aIndex])
-        return null;
-
-      return new Promise(resolve => {
-        // Create the new site and fade it in.
-        let site = gGrid.createSite(aLinks[aIndex], cells[aIndex]);
-
-        // Set the site's initial opacity to zero.
-        site.node.style.opacity = 0;
-
-        // Flush all style changes for the dynamically inserted site to make
-        // the fade-in transition work.
-        window.getComputedStyle(site.node).opacity;
-        gTransformation.showSite(site, resolve);
-      });
-    })).then(aCallback).catch(console.exception);
-  }
-};