Merge branch 'master' into Basilisk-releasev2019.03.08

75 files changed, 2 insertions, 801 deletions

diff --git a/toolkit/themes/linux/mozapps/jar.mn b/toolkit/themes/linux/mozapps/jar.mn
index 37325c0be..0931d1823 100644
--- a/toolkit/themes/linux/mozapps/jar.mn
+++ b/toolkit/themes/linux/mozapps/jar.mn
@@ -6,23 +6,6 @@ toolkit.jar:
 #include ../../shared/mozapps.inc.mn
   skin/classic/mozapps/downloads/downloadIcon.png          (downloads/downloadIcon.png)
   skin/classic/mozapps/downloads/downloads.css             (downloads/downloads.css)
-#ifdef MOZ_WEBEXTENSIONS
-* skin/classic/mozapps/extensions/extensions.css           (webextensions/extensions.css)
-  skin/classic/mozapps/extensions/category-search.png      (webextensions/category-search.png)
-  skin/classic/mozapps/extensions/category-discover.png    (webextensions/category-discover.png)
-  skin/classic/mozapps/extensions/category-plugins.png     (webextensions/category-plugins.png)
-  skin/classic/mozapps/extensions/category-service.png     (webextensions/category-service.png)
-  skin/classic/mozapps/extensions/category-recent.png      (webextensions/category-recent.png)
-  skin/classic/mozapps/extensions/category-available.png   (webextensions/category-available.png)
-  skin/classic/mozapps/extensions/extensionGeneric-16.png  (webextensions/extensionGeneric-16.png)
-  skin/classic/mozapps/extensions/dictionaryGeneric.png    (webextensions/dictionaryGeneric.png)
-  skin/classic/mozapps/extensions/dictionaryGeneric-16.png (webextensions/dictionaryGeneric-16.png)
-  skin/classic/mozapps/extensions/themeGeneric.png         (webextensions/themeGeneric.png)
-  skin/classic/mozapps/extensions/themeGeneric-16.png      (webextensions/themeGeneric-16.png)
-  skin/classic/mozapps/extensions/localeGeneric.png        (webextensions/localeGeneric.png)
-* skin/classic/mozapps/extensions/newaddon.css             (webextensions/newaddon.css)
-  skin/classic/mozapps/extensions/heart.png                (webextensions/heart.png)
-#else
   skin/classic/mozapps/extensions/extensions.css           (extensions/extensions.css)
   skin/classic/mozapps/extensions/category-search.png      (extensions/category-search.png)
   skin/classic/mozapps/extensions/category-discover.png    (extensions/category-discover.png)
@@ -46,7 +29,6 @@ toolkit.jar:
   skin/classic/mozapps/extensions/newaddon.css             (extensions/newaddon.css)
   skin/classic/mozapps/extensions/selectAddons.css         (extensions/selectAddons.css)
   skin/classic/mozapps/xpinstall/xpinstallItemGeneric.png  (extensions/extensionGeneric.png)
-#endif
   skin/classic/mozapps/passwordmgr/key.png                 (passwordmgr/key.png)
   skin/classic/mozapps/passwordmgr/key-16.png              (passwordmgr/key-16.png)
   skin/classic/mozapps/passwordmgr/key-64.png              (passwordmgr/key-64.png)
diff --git a/toolkit/themes/linux/mozapps/webextensions/category-available.png b/toolkit/themes/linux/mozapps/webextensions/category-available.png
deleted file mode 100644
index 689d526c9..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/category-available.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/category-discover.png b/toolkit/themes/linux/mozapps/webextensions/category-discover.png
deleted file mode 100644
index ccea27524..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/category-discover.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/category-plugins.png b/toolkit/themes/linux/mozapps/webextensions/category-plugins.png
deleted file mode 100644
index b253dd08f..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/category-plugins.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/category-recent.png b/toolkit/themes/linux/mozapps/webextensions/category-recent.png
deleted file mode 100644
index 9039b27aa..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/category-recent.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/category-search.png b/toolkit/themes/linux/mozapps/webextensions/category-search.png
deleted file mode 100644
index 52e91a7ce..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/category-search.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/category-service.png b/toolkit/themes/linux/mozapps/webextensions/category-service.png
deleted file mode 100644
index 997c8541c..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/category-service.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/dictionaryGeneric-16.png b/toolkit/themes/linux/mozapps/webextensions/dictionaryGeneric-16.png
deleted file mode 100644
index 08a0447a4..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/dictionaryGeneric-16.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/dictionaryGeneric.png b/toolkit/themes/linux/mozapps/webextensions/dictionaryGeneric.png
deleted file mode 100644
index a1e0d5359..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/dictionaryGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/extensionGeneric-16.png b/toolkit/themes/linux/mozapps/webextensions/extensionGeneric-16.png
deleted file mode 100644
index b1a2f3652..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/extensionGeneric-16.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/extensions.css b/toolkit/themes/linux/mozapps/webextensions/extensions.css
deleted file mode 100644
index 5a11df119..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/extensions.css
+++ /dev/null
@@ -1,42 +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/. */
-
-%include ../../../shared/webextensions/extensions.inc.css
-
-#header-utils-btn .toolbarbutton-icon {
-  list-style-image: url("chrome://mozapps/skin/extensions/utilities.svg#utilities-native");
-}
-
-.sorter[checkState="1"] .button-icon {
-  display: -moz-box;
-  list-style-image: url("moz-icon://stock/gtk-sort-descending?size=16");
-}
-
-.sorter[checkState="2"] .button-icon {
-  display: -moz-box;
-  list-style-image: url("moz-icon://stock/gtk-sort-ascending?size=16");
-}
-
-.addon .relnotes-toggle {
-  list-style-image: url("moz-icon://stock/gtk-go-down?size=16");
-}
-
-.addon .relnotes-toggle > .button-box > .button-icon {
-  display: -moz-box;
-}
-
-.addon[show-relnotes] .relnotes-toggle {
-  list-style-image: url("moz-icon://stock/gtk-go-up?size=16");
-}
-
-.meta-rating[showrating="average"] > .star {
-  list-style-image: url("chrome://mozapps/skin/extensions/rating-not-won.png");
-  padding: 0 1px;
-}
-
-.meta-rating > .star[on="true"],
-.meta-rating[showrating="user"] > .star[hover] {
-  list-style-image: url("chrome://mozapps/skin/extensions/rating-won.png");
-  padding: 0 1px;
-}
diff --git a/toolkit/themes/linux/mozapps/webextensions/heart.png b/toolkit/themes/linux/mozapps/webextensions/heart.png
deleted file mode 100644
index 655f4c4be..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/heart.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/localeGeneric.png b/toolkit/themes/linux/mozapps/webextensions/localeGeneric.png
deleted file mode 100644
index c72115906..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/localeGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/newaddon.css b/toolkit/themes/linux/mozapps/webextensions/newaddon.css
deleted file mode 100644
index 5856c08b5..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/newaddon.css
+++ /dev/null
@@ -1,5 +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/. */
-
-%include ../../../shared/webextensions/newaddon.inc.css
diff --git a/toolkit/themes/linux/mozapps/webextensions/themeGeneric-16.png b/toolkit/themes/linux/mozapps/webextensions/themeGeneric-16.png
deleted file mode 100644
index 019886fea..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/themeGeneric-16.png
+++ /dev/null
diff --git a/toolkit/themes/linux/mozapps/webextensions/themeGeneric.png b/toolkit/themes/linux/mozapps/webextensions/themeGeneric.png
deleted file mode 100644
index cde1c7834..000000000
--- a/toolkit/themes/linux/mozapps/webextensions/themeGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/jar.mn b/toolkit/themes/osx/mozapps/jar.mn
index f8ade11d9..eabd2eddb 100644
--- a/toolkit/themes/osx/mozapps/jar.mn
+++ b/toolkit/themes/osx/mozapps/jar.mn
@@ -8,36 +8,6 @@ toolkit.jar:
   skin/classic/mozapps/downloads/downloadIcon.png                 (downloads/downloadIcon.png)
 * skin/classic/mozapps/downloads/downloads.css                    (downloads/downloads.css)
   skin/classic/mozapps/downloads/unknownContentType.css           (downloads/unknownContentType.css)
-#ifdef MOZ_WEBEXTENSIONS
-  skin/classic/mozapps/extensions/category-search.png             (webextensions/category-search.png)
-  skin/classic/mozapps/extensions/category-discover.png           (webextensions/category-discover.png)
-  skin/classic/mozapps/extensions/category-plugins.png            (webextensions/category-plugins.png)
-  skin/classic/mozapps/extensions/category-service.png            (webextensions/category-service.png)
-  skin/classic/mozapps/extensions/category-dictionaries.png       (webextensions/category-dictionaries.png)
-  skin/classic/mozapps/extensions/category-experiments.png        (webextensions/category-experiments.png)
-  skin/classic/mozapps/extensions/category-recent.png             (webextensions/category-recent.png)
-  skin/classic/mozapps/extensions/category-available.png          (webextensions/category-available.png)
-  skin/classic/mozapps/extensions/discover-logo.png               (webextensions/discover-logo.png)
-  skin/classic/mozapps/extensions/extensionGeneric-16.png         (webextensions/extensionGeneric-16.png)
-  skin/classic/mozapps/extensions/themeGeneric.png                (webextensions/themeGeneric.png)
-  skin/classic/mozapps/extensions/themeGeneric-16.png             (webextensions/themeGeneric-16.png)
-  skin/classic/mozapps/extensions/dictionaryGeneric.png           (webextensions/dictionaryGeneric.png)
-  skin/classic/mozapps/extensions/dictionaryGeneric-16.png        (webextensions/dictionaryGeneric-16.png)
-  skin/classic/mozapps/extensions/experimentGeneric.png           (webextensions/experimentGeneric.png)
-  skin/classic/mozapps/extensions/localeGeneric.png               (webextensions/localeGeneric.png)
-  skin/classic/mozapps/extensions/rating-won.png                  (webextensions/rating-won.png)
-  skin/classic/mozapps/extensions/rating-not-won.png              (webextensions/rating-not-won.png)
-  skin/classic/mozapps/extensions/cancel.png                      (webextensions/cancel.png)
-  skin/classic/mozapps/extensions/toolbarbutton-dropmarker.png    (webextensions/toolbarbutton-dropmarker.png)
-  skin/classic/mozapps/extensions/heart.png                       (webextensions/heart.png)
-  skin/classic/mozapps/extensions/search.png                      (webextensions/search.png)
-  skin/classic/mozapps/extensions/about.css                       (webextensions/about.css)
-* skin/classic/mozapps/extensions/extensions.css                  (webextensions/extensions.css)
-  skin/classic/mozapps/extensions/update.css                      (webextensions/update.css)
-  skin/classic/mozapps/extensions/eula.css                        (webextensions/eula.css)
-  skin/classic/mozapps/extensions/blocklist.css                   (webextensions/blocklist.css)
-* skin/classic/mozapps/extensions/newaddon.css                    (webextensions/newaddon.css)
-#else
   skin/classic/mozapps/extensions/category-search.png             (extensions/category-search.png)
   skin/classic/mozapps/extensions/category-discover.png           (extensions/category-discover.png)
   skin/classic/mozapps/extensions/category-languages.png          (extensions/localeGeneric.png)
@@ -82,7 +52,6 @@ toolkit.jar:
   skin/classic/mozapps/extensions/eula.css                        (extensions/eula.css)
   skin/classic/mozapps/extensions/blocklist.css                   (extensions/blocklist.css)
 * skin/classic/mozapps/extensions/newaddon.css                    (extensions/newaddon.css)
-#endif
   skin/classic/mozapps/passwordmgr/key.png                        (passwordmgr/key.png)
   skin/classic/mozapps/passwordmgr/key-16.png                     (passwordmgr/key-16.png)
   skin/classic/mozapps/passwordmgr/key-64.png                     (passwordmgr/key-64.png)
@@ -98,12 +67,8 @@ toolkit.jar:
   skin/classic/mozapps/update/buttons.png                         (update/buttons.png)
 * skin/classic/mozapps/update/updates.css                         (update/updates.css)
   skin/classic/mozapps/viewsource/viewsource.css                  (viewsource/viewsource.css)
-#ifdef MOZ_WEBEXTENSIONS
-  skin/classic/mozapps/xpinstall/xpinstallConfirm.css             (webextensions/xpinstallConfirm.css)
-#else
   skin/classic/mozapps/xpinstall/xpinstallItemGeneric.png         (extensions/extensionGeneric.png)
   skin/classic/mozapps/xpinstall/xpinstallConfirm.css             (extensions/xpinstallConfirm.css)
-#endif
   skin/classic/mozapps/handling/handling.css                      (handling/handling.css)
 
 #ifdef MOZ_PHOENIX
@@ -111,9 +76,4 @@ toolkit.jar:
 #elif MOZ_SEPARATE_MANIFEST_FOR_THEME_OVERRIDES
 [extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}] chrome.jar:
 #endif
-#ifdef MOZ_WEBEXTENSIONS
-% override chrome://mozapps/skin/extensions/category-extensions.svg       chrome://mozapps/skin/extensions/extensionGeneric.svg
-% override chrome://mozapps/skin/extensions/category-languages.png        chrome://mozapps/skin/extensions/localeGeneric.png
-% override chrome://mozapps/skin/extensions/category-themes.png           chrome://mozapps/skin/extensions/themeGeneric.png
-#endif
 % override chrome://mozapps/skin/plugins/notifyPluginCrashed.png          chrome://mozapps/skin/plugins/notifyPluginGeneric.png
diff --git a/toolkit/themes/osx/mozapps/webextensions/about.css b/toolkit/themes/osx/mozapps/webextensions/about.css
deleted file mode 100644
index c13ce5f59..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/about.css
+++ /dev/null
@@ -1,78 +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/. */
-
-#genericAbout {
-  padding: 0px;
-  min-height: 200px;
-  max-height: 400px;
-  width: 30em;
-}
-
-#clientBox {
-  background-color: -moz-Dialog;
-  color: -moz-DialogText;
-}
-
-.basic-info {
-  padding: 10px;
-}
-
-#extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/extensionGeneric.svg");
-  max-width: 64px;
-  max-height: 64px;
-  margin-inline-end: 6px;
-}
-
-#genericAbout[addontype="theme"] #extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/themeGeneric.png");
-}
-
-#genericAbout[addontype="locale"] #extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/localeGeneric.png");
-}
-
-#genericAbout[addontype="plugin"] #extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/plugins/pluginGeneric.png");
-}
-
-#genericAbout[addontype="dictionary"] #extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/dictionaryGeneric.png");
-}
-
-#extensionName {
-  font-size: 200%;
-  font-weight: bolder;
-}
-
-#extensionVersion {
-  font-weight: bold;
-}
-
-#extensionDescription {
-  margin-top: 4px;
-}
-
-#groove {
-  margin-top: 8px;
-}
-
-#extensionDetailsBox {
-  overflow: auto;
-  min-height: 100px;
-}
-
-.boxIndent {
-  margin-inline-start: 18px;
-}
-
-#extensionCreator, .contributor {
-  margin: 0px;
-} 
-
-.sectionTitle {
-  padding: 2px 0px 3px 0px;
-  margin-top: 3px;
-  font-weight: bold;
-}
diff --git a/toolkit/themes/osx/mozapps/webextensions/blocklist.css b/toolkit/themes/osx/mozapps/webextensions/blocklist.css
deleted file mode 100644
index 02f6e1d49..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/blocklist.css
+++ /dev/null
@@ -1,20 +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/. */
-
-richlistitem {
-  padding-top: 6px;
-  padding-bottom: 6px;
-  padding-inline-start: 7px;
-  padding-inline-end: 7px;
-  border-bottom: 1px solid #C0C0C0;
-}
-
-.addon-name-version {
-  font-size: 110%;
-}
-
-.blockedLabel {
-  font-weight: bold;
-  font-style: italic;
-}
diff --git a/toolkit/themes/osx/mozapps/webextensions/cancel.png b/toolkit/themes/osx/mozapps/webextensions/cancel.png
deleted file mode 100644
index 0d98ab235..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/cancel.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/category-available.png b/toolkit/themes/osx/mozapps/webextensions/category-available.png
deleted file mode 100644
index d1b737ab0..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/category-available.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/category-dictionaries.png b/toolkit/themes/osx/mozapps/webextensions/category-dictionaries.png
deleted file mode 100644
index 54ae4f93f..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/category-dictionaries.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/category-discover.png b/toolkit/themes/osx/mozapps/webextensions/category-discover.png
deleted file mode 100644
index a6f5b49b3..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/category-discover.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/category-experiments.png b/toolkit/themes/osx/mozapps/webextensions/category-experiments.png
deleted file mode 100644
index a9d00545e..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/category-experiments.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/category-plugins.png b/toolkit/themes/osx/mozapps/webextensions/category-plugins.png
deleted file mode 100644
index 5c4d8bf47..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/category-plugins.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/category-recent.png b/toolkit/themes/osx/mozapps/webextensions/category-recent.png
deleted file mode 100644
index 7ecfc7d4c..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/category-recent.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/category-search.png b/toolkit/themes/osx/mozapps/webextensions/category-search.png
deleted file mode 100644
index 52e91a7ce..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/category-search.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/category-service.png b/toolkit/themes/osx/mozapps/webextensions/category-service.png
deleted file mode 100644
index 997c8541c..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/category-service.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/dictionaryGeneric-16.png b/toolkit/themes/osx/mozapps/webextensions/dictionaryGeneric-16.png
deleted file mode 100644
index 4ad1a1a82..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/dictionaryGeneric-16.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/dictionaryGeneric.png b/toolkit/themes/osx/mozapps/webextensions/dictionaryGeneric.png
deleted file mode 100644
index 54ae4f93f..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/dictionaryGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/discover-logo.png b/toolkit/themes/osx/mozapps/webextensions/discover-logo.png
deleted file mode 100644
index cd50735a8..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/discover-logo.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/eula.css b/toolkit/themes/osx/mozapps/webextensions/eula.css
deleted file mode 100644
index 05aeb3c1c..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/eula.css
+++ /dev/null
@@ -1,47 +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/. */
-
-#icon {
-  list-style-image: url("chrome://mozapps/skin/extensions/extensionGeneric.svg");
-  max-width: 48px;
-  max-height: 48px;
-  margin-inline-end: 6px;
-}
-
-#eula-dialog[addontype="theme"] #icon {
-  list-style-image: url("chrome://mozapps/skin/extensions/themeGeneric.png");
-}
-
-#eula-dialog[addontype="locale"] #icon {
-  list-style-image: url("chrome://mozapps/skin/extensions/localeGeneric.png");
-}
-
-#eula-dialog[addontype="plugin"] #icon {
-  list-style-image: url("chrome://mozapps/skin/plugins/pluginGeneric.png");
-}
-
-#eula-dialog[addontype="dictionary"] #icon {
-  list-style-image: url("chrome://mozapps/skin/extensions/dictionaryGeneric.png");
-}
-
-#heading-container {
-  -moz-box-align: center;
-}
-
-#heading {
-  font-size: 120%;
-}
-
-#eula {
-  -moz-appearance: none;
-  color: -moz-FieldText;
-  background-color: -moz-Field;
-  margin: 1em;
-  border: 1px solid;
-  -moz-border-top-colors: ActiveBorder;
-  -moz-border-right-colors: ActiveBorder;
-  -moz-border-bottom-colors: ActiveBorder;
-  -moz-border-left-colors: ActiveBorder;
-}
-
diff --git a/toolkit/themes/osx/mozapps/webextensions/experimentGeneric.png b/toolkit/themes/osx/mozapps/webextensions/experimentGeneric.png
deleted file mode 100644
index a9d00545e..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/experimentGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/extensionGeneric-16.png b/toolkit/themes/osx/mozapps/webextensions/extensionGeneric-16.png
deleted file mode 100644
index fc6c8a258..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/extensionGeneric-16.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/extensions.css b/toolkit/themes/osx/mozapps/webextensions/extensions.css
deleted file mode 100644
index cbdd9a5b0..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/extensions.css
+++ /dev/null
@@ -1,51 +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/. */
-
-%include ../../../shared/webextensions/extensions.inc.css
-
-.no-auto-hide > .menulist-dropmarker {
-  padding-inline-start: 0px !important;
-}
-
-#header-utils-btn {
-  list-style-image: url("chrome://mozapps/skin/extensions/utilities.svg#utilities");
-  margin-inline-end: 18px;
-}
-
-#header-utils-btn > .toolbarbutton-menu-dropmarker {
-  list-style-image: url("chrome://mozapps/skin/extensions/toolbarbutton-dropmarker.png");
-  padding: 0;
-  margin-inline-start: 2px;
-}
-
-.sorter[checkState="1"] {
-  list-style-image: url("chrome://global/skin/arrow/arrow-dn.gif");
-}
-
-.sorter[checkState="2"] {
-  list-style-image: url("chrome://global/skin/arrow/arrow-up.gif");
-}
-
-.addon .relnotes-toggle {
-  -moz-box-direction: reverse;
-  list-style-image: url("chrome://global/skin/arrow/arrow-dn.gif");
-}
-
-.addon[show-relnotes] .relnotes-toggle {
-  list-style-image: url("chrome://global/skin/arrow/arrow-up.gif");
-}
-
-.download-progress {
-  margin-top: 3px;
-  margin-bottom: 3px;
-}
-
-.meta-rating > .star {
-  list-style-image: url("chrome://mozapps/skin/extensions/rating-not-won.png");
-  padding: 0 1px;
-}
-
-.meta-rating > .star[on="true"] {
-  list-style-image: url("chrome://mozapps/skin/extensions/rating-won.png");
-}
diff --git a/toolkit/themes/osx/mozapps/webextensions/heart.png b/toolkit/themes/osx/mozapps/webextensions/heart.png
deleted file mode 100644
index 655f4c4be..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/heart.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/localeGeneric.png b/toolkit/themes/osx/mozapps/webextensions/localeGeneric.png
deleted file mode 100644
index 4d9ac5ad8..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/localeGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/newaddon.css b/toolkit/themes/osx/mozapps/webextensions/newaddon.css
deleted file mode 100644
index 5856c08b5..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/newaddon.css
+++ /dev/null
@@ -1,5 +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/. */
-
-%include ../../../shared/webextensions/newaddon.inc.css
diff --git a/toolkit/themes/osx/mozapps/webextensions/rating-not-won.png b/toolkit/themes/osx/mozapps/webextensions/rating-not-won.png
deleted file mode 100644
index 2761f1925..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/rating-not-won.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/rating-won.png b/toolkit/themes/osx/mozapps/webextensions/rating-won.png
deleted file mode 100644
index 336dd8f6e..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/rating-won.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/search.png b/toolkit/themes/osx/mozapps/webextensions/search.png
deleted file mode 100644
index 93196dbbf..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/search.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/themeGeneric-16.png b/toolkit/themes/osx/mozapps/webextensions/themeGeneric-16.png
deleted file mode 100644
index 190bb30d7..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/themeGeneric-16.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/themeGeneric.png b/toolkit/themes/osx/mozapps/webextensions/themeGeneric.png
deleted file mode 100644
index be645f76d..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/themeGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/toolbarbutton-dropmarker.png b/toolkit/themes/osx/mozapps/webextensions/toolbarbutton-dropmarker.png
deleted file mode 100644
index e7674c62a..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/toolbarbutton-dropmarker.png
+++ /dev/null
diff --git a/toolkit/themes/osx/mozapps/webextensions/update.css b/toolkit/themes/osx/mozapps/webextensions/update.css
deleted file mode 100644
index a0a016868..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/update.css
+++ /dev/null
@@ -1,28 +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/. */
-
-.throbber {
-  list-style-image: url("chrome://global/skin/icons/loading.png");
-  width: 16px;
-  height: 16px;
-  margin-top: 5px;
-  margin-bottom: 5px;
-  margin-inline-start: 5px;
-  margin-inline-end: 2px;
-}
-
-@media (min-resolution: 2dppx) {
-  .throbber {
-    list-style-image: url("chrome://global/skin/icons/loading@2x.png");
-  }
-}
-
-.alertBox {
-  background-color: InfoBackground;
-  color: InfoText;
-  border: 1px outset InfoBackground;
-  margin-left: 3px;
-  margin-right: 3px;
-  padding: 5px;
-}
diff --git a/toolkit/themes/osx/mozapps/webextensions/xpinstallConfirm.css b/toolkit/themes/osx/mozapps/webextensions/xpinstallConfirm.css
deleted file mode 100644
index 48af7c1a9..000000000
--- a/toolkit/themes/osx/mozapps/webextensions/xpinstallConfirm.css
+++ /dev/null
@@ -1,90 +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/. */
-
-#xpinstallheader {
-  margin-bottom: 2em;
-}
-
-.alert-icon {
-  width: 48px;
-  height: 48px;
-  list-style-image: url("chrome://global/skin/icons/warning-large.png");
-  margin-top: 0 !important;
-  margin-bottom: 6px !important;
-  margin-inline-start: 6px !important;
-  margin-inline-end: 20px !important;
-}
-
-#itemList {
-  -moz-appearance: listbox;
-  margin: 3px 4px 10px 4px;
-  height: 14em;
-}
-
-#itemWarningIntro {
-  margin-inline-start: 8px;
-}
-
-#dialogContentBox {
-  padding: 5px;
-}
-
-installitem {
-  padding: 5px 0 5px 5px;
-  border-bottom: 1px dotted #C0C0C0;
-  margin-bottom: 5px;
-}
-
-.warning {
-  font-weight: bold;
-  font-size: 1.25em;
-  margin-bottom: 1em;
-}
-
-.xpinstallIconContainer {
-  width: 32px;
-  height: 32px;
-  margin-inline-end: 5px;
-}
-
-.xpinstallItemName {
-  font-weight: bold;
-}
-
-.xpinstallItemSigned {
-  font-style: italic;
-  font-size: 0.9em;
-}
-
-.xpinstallItemURL {
-  -moz-appearance: none;
-  border: none;
-  background-color: Window;
-  margin-top: 2px;
-  margin-bottom: 1px;
-  margin-inline-start: 6px;
-  margin-inline-end: 5px;
-}
-
-.xpinstallItemIcon {
-  max-width: 32px;
-  max-height: 32px;
-  list-style-image: url("chrome://mozapps/skin/extensions/extensionGeneric.svg");
-}
-
-installitem[type="theme"] .xpinstallItemIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/themeGeneric.png");
-}
-
-installitem[type="locale"] .xpinstallItemIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/localeGeneric.png");
-}
-
-installitem[type="plugin"] .xpinstallItemIcon {
-  list-style-image: url("chrome://mozapps/skin/plugins/pluginGeneric.png");
-}
-
-installitem[type="dictionary"] .xpinstallItemIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/dictionaryGeneric.png");
-}
diff --git a/toolkit/themes/shared/non-mac.jar.inc.mn b/toolkit/themes/shared/non-mac.jar.inc.mn
index 23f9da519..b17e9d7ba 100644
--- a/toolkit/themes/shared/non-mac.jar.inc.mn
+++ b/toolkit/themes/shared/non-mac.jar.inc.mn
@@ -36,10 +36,12 @@
   skin/classic/global/arrow/arrow-down.png                 (../../windows/global/arrow/arrow-down.png)
   skin/classic/global/arrow/arrow-lft.gif                  (../../windows/global/arrow/arrow-lft.gif)
   skin/classic/global/arrow/arrow-lft-dis.gif              (../../windows/global/arrow/arrow-lft-dis.gif)
+  skin/classic/global/arrow/arrow-lft-hov.gif              (../../windows/global/arrow/arrow-lft-hov.gif)
   skin/classic/global/arrow/arrow-lft-sharp.gif            (../../windows/global/arrow/arrow-lft-sharp.gif)
   skin/classic/global/arrow/arrow-lft-sharp-end.gif        (../../windows/global/arrow/arrow-lft-sharp-end.gif)
   skin/classic/global/arrow/arrow-rit.gif                  (../../windows/global/arrow/arrow-rit.gif)
   skin/classic/global/arrow/arrow-rit-dis.gif              (../../windows/global/arrow/arrow-rit-dis.gif)
+  skin/classic/global/arrow/arrow-rit-hov.gif              (../../windows/global/arrow/arrow-rit-hov.gif)
   skin/classic/global/arrow/arrow-rit-sharp.gif            (../../windows/global/arrow/arrow-rit-sharp.gif)
   skin/classic/global/arrow/arrow-rit-sharp-end.gif        (../../windows/global/arrow/arrow-rit-sharp-end.gif)
   skin/classic/global/arrow/arrow-up.gif                   (../../windows/global/arrow/arrow-up.gif)
@@ -109,40 +111,15 @@
 
   skin/classic/mozapps/downloads/downloadButtons.png         (../../windows/mozapps/downloads/downloadButtons.png)
   skin/classic/mozapps/downloads/unknownContentType.css      (../../windows/mozapps/downloads/unknownContentType.css)
-#ifdef MOZ_WEBEXTENSIONS
-  skin/classic/mozapps/extensions/about.css                  (../../windows/mozapps/webextensions/about.css)
-  skin/classic/mozapps/extensions/blocklist.css              (../../windows/mozapps/webextensions/blocklist.css)
-  skin/classic/mozapps/extensions/update.css                 (../../windows/mozapps/webextensions/update.css)
-  skin/classic/mozapps/extensions/discover-logo.png          (../../windows/mozapps/webextensions/discover-logo.png)
-  skin/classic/mozapps/extensions/experimentGeneric.png      (../../windows/mozapps/webextensions/experimentGeneric.png)
-  skin/classic/mozapps/extensions/rating-won.png             (../../windows/mozapps/webextensions/rating-won.png)
-  skin/classic/mozapps/extensions/rating-not-won.png         (../../windows/mozapps/webextensions/rating-not-won.png)
-  skin/classic/mozapps/extensions/cancel.png                 (../../windows/mozapps/webextensions/cancel.png)
-  skin/classic/mozapps/extensions/eula.css                   (../../windows/mozapps/webextensions/eula.css)
-#endif
   skin/classic/mozapps/handling/handling.css                 (../../windows/mozapps/handling/handling.css)
   skin/classic/mozapps/plugins/pluginBlocked-64.png          (../../windows/mozapps/plugins/pluginBlocked-64.png)
   skin/classic/mozapps/plugins/pluginHelp-16.png             (../../windows/mozapps/plugins/pluginHelp-16.png)
   skin/classic/mozapps/profile/profileSelection.css          (../../windows/mozapps/profile/profileSelection.css)
   skin/classic/mozapps/update/downloadButtons.png            (../../windows/mozapps/update/downloadButtons.png)
-#ifdef MOZ_WEBEXTENSIONS
-* skin/classic/mozapps/xpinstall/xpinstallConfirm.css        (../../windows/mozapps/webextensions/xpinstallConfirm.css)
-#endif
 
 #ifdef MOZ_PHOENIX
 [browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}] chrome.jar:
 #elif MOZ_SEPARATE_MANIFEST_FOR_THEME_OVERRIDES
 [extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}] chrome.jar:
 #endif
-#ifdef MOZ_WEBEXTENSIONS
-% override chrome://global/skin/arrow/arrow-lft-hov.gif           chrome://global/skin/arrow/arrow-lft.gif
-% override chrome://global/skin/arrow/arrow-rit-hov.gif           chrome://global/skin/arrow/arrow-rit.gif
-% override chrome://mozapps/skin/extensions/category-dictionaries.png     chrome://mozapps/skin/extensions/dictionaryGeneric.png
-% override chrome://mozapps/skin/extensions/category-experiments.png      chrome://mozapps/skin/extensions/experimentGeneric.png
-% override chrome://mozapps/skin/extensions/category-extensions.svg       chrome://mozapps/skin/extensions/extensionGeneric.svg
-% override chrome://mozapps/skin/extensions/category-languages.png        chrome://mozapps/skin/extensions/localeGeneric.png
-% override chrome://mozapps/skin/extensions/category-themes.png           chrome://mozapps/skin/extensions/themeGeneric.png
-% override chrome://mozapps/skin/plugins/notifyPluginGeneric.png          chrome://mozapps/skin/plugins/pluginGeneric-16.png
-% override chrome://mozapps/skin/xpinstall/xpinstallItemGeneric.png       chrome://mozapps/skin/extensions/extensionGeneric.png
-#endif
 % override chrome://mozapps/skin/plugins/notifyPluginCrashed.png          chrome://mozapps/skin/plugins/pluginGeneric-16.png
diff --git a/toolkit/themes/windows/global/arrow/arrow-lft-hov.gif b/toolkit/themes/windows/global/arrow/arrow-lft-hov.gif
new file mode 100644
index 000000000..2c814ca65
--- /dev/null
+++ b/toolkit/themes/windows/global/arrow/arrow-lft-hov.gif
diff --git a/toolkit/themes/windows/global/arrow/arrow-rit-hov.gif b/toolkit/themes/windows/global/arrow/arrow-rit-hov.gif
new file mode 100644
index 000000000..d0a401647
--- /dev/null
+++ b/toolkit/themes/windows/global/arrow/arrow-rit-hov.gif
diff --git a/toolkit/themes/windows/mozapps/jar.mn b/toolkit/themes/windows/mozapps/jar.mn
index 0d77a4e79..9f7562995 100644
--- a/toolkit/themes/windows/mozapps/jar.mn
+++ b/toolkit/themes/windows/mozapps/jar.mn
@@ -6,23 +6,6 @@ toolkit.jar:
 #include ../../shared/mozapps.inc.mn
   skin/classic/mozapps/downloads/downloadIcon.png            (downloads/downloadIcon.png)
   skin/classic/mozapps/downloads/downloads.css               (downloads/downloads.css)
-#ifdef MOZ_WEBEXTENSIONS
-* skin/classic/mozapps/extensions/extensions.css             (webextensions/extensions.css)
-  skin/classic/mozapps/extensions/category-search.png        (webextensions/category-search.png)
-  skin/classic/mozapps/extensions/category-discover.png      (webextensions/category-discover.png)
-  skin/classic/mozapps/extensions/category-plugins.png       (webextensions/category-plugins.png)
-  skin/classic/mozapps/extensions/category-service.png       (webextensions/category-service.png)
-  skin/classic/mozapps/extensions/category-recent.png        (webextensions/category-recent.png)
-  skin/classic/mozapps/extensions/category-available.png     (webextensions/category-available.png)
-  skin/classic/mozapps/extensions/extensionGeneric-16.png    (webextensions/extensionGeneric-16.png)
-  skin/classic/mozapps/extensions/themeGeneric.png           (webextensions/themeGeneric.png)
-  skin/classic/mozapps/extensions/themeGeneric-16.png        (webextensions/themeGeneric-16.png)
-  skin/classic/mozapps/extensions/dictionaryGeneric.png      (webextensions/dictionaryGeneric.png)
-  skin/classic/mozapps/extensions/dictionaryGeneric-16.png   (webextensions/dictionaryGeneric-16.png)
-  skin/classic/mozapps/extensions/localeGeneric.png          (webextensions/localeGeneric.png)
-  skin/classic/mozapps/extensions/heart.png                  (webextensions/heart.png)
-* skin/classic/mozapps/extensions/newaddon.css               (webextensions/newaddon.css)
-#else
   skin/classic/mozapps/extensions/about.css                  (extensions/about.css)
   skin/classic/mozapps/extensions/blocklist.css              (extensions/blocklist.css)
 * skin/classic/mozapps/extensions/extensions.css             (extensions/extensions.css)
@@ -67,7 +50,6 @@ toolkit.jar:
   skin/classic/mozapps/extensions/newaddon.css               (extensions/newaddon.css)
 * skin/classic/mozapps/xpinstall/xpinstallConfirm.css        (extensions/xpinstallConfirm.css)
   skin/classic/mozapps/xpinstall/xpinstallItemGeneric.png    (extensions/extensionGeneric.png)
-#endif
   skin/classic/mozapps/passwordmgr/key.png                   (passwordmgr/key.png)
   skin/classic/mozapps/passwordmgr/key-16.png                (passwordmgr/key-16.png)
   skin/classic/mozapps/passwordmgr/key-64.png                (passwordmgr/key-64.png)
diff --git a/toolkit/themes/windows/mozapps/webextensions/about.css b/toolkit/themes/windows/mozapps/webextensions/about.css
deleted file mode 100644
index 19eaddca8..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/about.css
+++ /dev/null
@@ -1,91 +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/. */
-
-#genericAbout {
-  padding: 0px;
-  min-height: 200px;
-  max-height: 400px;
-  width: 30em;
-}
-
-#clientBox {
-  background-color: -moz-Dialog;
-  color: -moz-DialogText;
-}
-
-@media (-moz-windows-compositor) {
-  #genericAbout {
-    -moz-appearance: -moz-win-glass;
-    background: transparent;
-  }
-
-  #clientBox {
-    -moz-appearance: -moz-win-exclude-glass;
-  }
-}
-
-
-.basic-info {
-  padding: 10px;
-}
-
-#extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/extensionGeneric.svg");
-  max-width: 64px;
-  max-height: 64px;
-  margin-inline-end: 6px;
-}
-
-#genericAbout[addontype="theme"] #extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/themeGeneric.png");
-}
-
-#genericAbout[addontype="locale"] #extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/localeGeneric.png");
-}
-
-#genericAbout[addontype="plugin"] #extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/plugins/pluginGeneric.png");
-}
-
-#genericAbout[addontype="dictionary"] #extensionIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/dictionaryGeneric.png");
-}
-
-#extensionName {
-  font-size: 200%;
-  font-weight: bolder;
-}
-
-#extensionVersion {
-  font-weight: bold;
-}
-
-#extensionDescription {
-  margin-top: 4px;
-}
-
-#groove {
-  margin-top: 8px;
-}
-
-#extensionDetailsBox {
-  overflow: auto;
-  min-height: 100px;
-}
-
-.boxIndent {
-  margin-inline-start: 18px;
-}
-
-#extensionCreator, .contributor {
-  margin: 0px;
-} 
-
-.sectionTitle {
-  padding: 2px 0px 3px 0px;
-  margin-top: 3px;
-  font-weight: bold;
-}
-
diff --git a/toolkit/themes/windows/mozapps/webextensions/blocklist.css b/toolkit/themes/windows/mozapps/webextensions/blocklist.css
deleted file mode 100644
index 1cdbb35ac..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/blocklist.css
+++ /dev/null
@@ -1,20 +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/. */
-
-richlistitem {
-  padding-top: 6px;
-  padding-bottom: 6px;
-  padding-inline-start: 7px;
-  padding-inline-end: 7px;
-  border-bottom: 1px solid #C0C0C0;
-}
-
-.addonName {
-  font-weight: bold;
-}
-
-.blockedLabel {
-  font-weight: bold;
-  font-style: italic;
-}
diff --git a/toolkit/themes/windows/mozapps/webextensions/cancel.png b/toolkit/themes/windows/mozapps/webextensions/cancel.png
deleted file mode 100644
index 0d98ab235..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/cancel.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/category-available.png b/toolkit/themes/windows/mozapps/webextensions/category-available.png
deleted file mode 100644
index 9341f2aa7..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/category-available.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/category-discover.png b/toolkit/themes/windows/mozapps/webextensions/category-discover.png
deleted file mode 100644
index af954a613..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/category-discover.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/category-plugins.png b/toolkit/themes/windows/mozapps/webextensions/category-plugins.png
deleted file mode 100644
index 100a90307..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/category-plugins.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/category-recent.png b/toolkit/themes/windows/mozapps/webextensions/category-recent.png
deleted file mode 100644
index d65158646..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/category-recent.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/category-search.png b/toolkit/themes/windows/mozapps/webextensions/category-search.png
deleted file mode 100644
index 52e91a7ce..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/category-search.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/category-service.png b/toolkit/themes/windows/mozapps/webextensions/category-service.png
deleted file mode 100644
index 997c8541c..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/category-service.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/dictionaryGeneric-16.png b/toolkit/themes/windows/mozapps/webextensions/dictionaryGeneric-16.png
deleted file mode 100644
index 37e2a5e4c..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/dictionaryGeneric-16.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/dictionaryGeneric.png b/toolkit/themes/windows/mozapps/webextensions/dictionaryGeneric.png
deleted file mode 100644
index b26bb7100..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/dictionaryGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/discover-logo.png b/toolkit/themes/windows/mozapps/webextensions/discover-logo.png
deleted file mode 100644
index cd50735a8..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/discover-logo.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/eula.css b/toolkit/themes/windows/mozapps/webextensions/eula.css
deleted file mode 100644
index 05aeb3c1c..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/eula.css
+++ /dev/null
@@ -1,47 +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/. */
-
-#icon {
-  list-style-image: url("chrome://mozapps/skin/extensions/extensionGeneric.svg");
-  max-width: 48px;
-  max-height: 48px;
-  margin-inline-end: 6px;
-}
-
-#eula-dialog[addontype="theme"] #icon {
-  list-style-image: url("chrome://mozapps/skin/extensions/themeGeneric.png");
-}
-
-#eula-dialog[addontype="locale"] #icon {
-  list-style-image: url("chrome://mozapps/skin/extensions/localeGeneric.png");
-}
-
-#eula-dialog[addontype="plugin"] #icon {
-  list-style-image: url("chrome://mozapps/skin/plugins/pluginGeneric.png");
-}
-
-#eula-dialog[addontype="dictionary"] #icon {
-  list-style-image: url("chrome://mozapps/skin/extensions/dictionaryGeneric.png");
-}
-
-#heading-container {
-  -moz-box-align: center;
-}
-
-#heading {
-  font-size: 120%;
-}
-
-#eula {
-  -moz-appearance: none;
-  color: -moz-FieldText;
-  background-color: -moz-Field;
-  margin: 1em;
-  border: 1px solid;
-  -moz-border-top-colors: ActiveBorder;
-  -moz-border-right-colors: ActiveBorder;
-  -moz-border-bottom-colors: ActiveBorder;
-  -moz-border-left-colors: ActiveBorder;
-}
-
diff --git a/toolkit/themes/windows/mozapps/webextensions/experimentGeneric.png b/toolkit/themes/windows/mozapps/webextensions/experimentGeneric.png
deleted file mode 100644
index a9d00545e..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/experimentGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/extensionGeneric-16.png b/toolkit/themes/windows/mozapps/webextensions/extensionGeneric-16.png
deleted file mode 100644
index 2724b9e7c..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/extensionGeneric-16.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/extensions.css b/toolkit/themes/windows/mozapps/webextensions/extensions.css
deleted file mode 100644
index 7c4aed05e..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/extensions.css
+++ /dev/null
@@ -1,42 +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/. */
-
-%include ../../../shared/webextensions/extensions.inc.css
-
-#header-utils-btn {
-  list-style-image: url("chrome://mozapps/skin/extensions/utilities.svg#utilities");
-  margin-inline-end: 16px;
-}
-
-@media not all and (-moz-windows-default-theme) {
-  #header-utils-btn {
-    list-style-image: url("chrome://mozapps/skin/extensions/utilities.svg#utilities-native");
-  }
-}
-
-.sorter[checkState="1"] {
-  list-style-image: url("chrome://global/skin/arrow/arrow-dn.gif");
-}
-
-.sorter[checkState="2"] {
-  list-style-image: url("chrome://global/skin/arrow/arrow-up.gif");
-}
-
-.addon .relnotes-toggle {
-  -moz-box-direction: reverse;
-  list-style-image: url("chrome://global/skin/arrow/arrow-dn.gif");
-}
-
-.addon[show-relnotes] .relnotes-toggle {
-  list-style-image: url("chrome://global/skin/arrow/arrow-up.gif");
-}
-
-.meta-rating > .star {
-  list-style-image: url("chrome://mozapps/skin/extensions/rating-not-won.png");
-  padding: 0 1px;
-}
-
-.meta-rating > .star[on="true"] {
-  list-style-image: url("chrome://mozapps/skin/extensions/rating-won.png");
-}
diff --git a/toolkit/themes/windows/mozapps/webextensions/heart.png b/toolkit/themes/windows/mozapps/webextensions/heart.png
deleted file mode 100644
index 655f4c4be..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/heart.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/localeGeneric.png b/toolkit/themes/windows/mozapps/webextensions/localeGeneric.png
deleted file mode 100644
index 623ba3a6a..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/localeGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/newaddon.css b/toolkit/themes/windows/mozapps/webextensions/newaddon.css
deleted file mode 100644
index 5856c08b5..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/newaddon.css
+++ /dev/null
@@ -1,5 +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/. */
-
-%include ../../../shared/webextensions/newaddon.inc.css
diff --git a/toolkit/themes/windows/mozapps/webextensions/rating-not-won.png b/toolkit/themes/windows/mozapps/webextensions/rating-not-won.png
deleted file mode 100644
index 2761f1925..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/rating-not-won.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/rating-won.png b/toolkit/themes/windows/mozapps/webextensions/rating-won.png
deleted file mode 100644
index 336dd8f6e..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/rating-won.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/themeGeneric-16.png b/toolkit/themes/windows/mozapps/webextensions/themeGeneric-16.png
deleted file mode 100644
index ff13ce37f..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/themeGeneric-16.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/themeGeneric.png b/toolkit/themes/windows/mozapps/webextensions/themeGeneric.png
deleted file mode 100644
index 9cea549dd..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/themeGeneric.png
+++ /dev/null
diff --git a/toolkit/themes/windows/mozapps/webextensions/update.css b/toolkit/themes/windows/mozapps/webextensions/update.css
deleted file mode 100644
index 0db179330..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/update.css
+++ /dev/null
@@ -1,28 +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/. */
-
-.throbber {
-  list-style-image: url("chrome://global/skin/icons/loading.png");
-  width: 16px;
-  height: 16px;
-  margin-top: 5px;
-  margin-bottom: 5px;
-  margin-inline-start: 5px;
-  margin-inline-end: 2px;
-}
-
-@media (min-resolution: 1.1dppx) {
-  .throbber {
-    list-style-image: url("chrome://global/skin/icons/loading@2x.png");
-  }
-}
-
-.alertBox {
-  background-color: InfoBackground;
-  color: InfoText;
-  border: 1px outset InfoBackground;
-  margin-left: 3px;
-  margin-right: 3px;
-  padding: 5px;
-}
diff --git a/toolkit/themes/windows/mozapps/webextensions/xpinstallConfirm.css b/toolkit/themes/windows/mozapps/webextensions/xpinstallConfirm.css
deleted file mode 100644
index 42db4cd4d..000000000
--- a/toolkit/themes/windows/mozapps/webextensions/xpinstallConfirm.css
+++ /dev/null
@@ -1,101 +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/. */
-
-#xpinstallheader {
-  margin-bottom: 2em;
-}
-
-#itemList {
-  -moz-appearance: listbox;
-  margin: 3px 4px 10px 4px;
-  height: 14em;
-  border: 2px solid;
-  -moz-border-top-colors: ThreeDShadow ThreeDDarkShadow;
-  -moz-border-right-colors: ThreeDHighlight ThreeDLightShadow;
-  -moz-border-bottom-colors: ThreeDHighlight ThreeDLightShadow;
-  -moz-border-left-colors: ThreeDShadow ThreeDDarkShadow;
-  background-color: -moz-Field;
-  color: -moz-FieldText;
-}
-
-#itemWarningIntro {
-  margin-inline-start: 8px;
-}
-
-#dialogContentBox {
-  padding: 5px;
-}
-
-installitem {
-  padding-top: 5px;
-  padding-bottom: 5px;
-  padding-inline-start: 5px;
-  padding-inline-end: 0;
-  border-bottom: 1px dotted #C0C0C0;
-  margin-bottom: 5px;
-}
-
-.alert-icon {
-%ifdef XP_WIN
-  list-style-image: url("chrome://global/skin/icons/warning-large.png");
-  width: 48px;
-  height: 48px;
-%endif
-  margin-inline-end: 20px;
-}
-
-.warning {
-  font-weight: bold;
-  font-size: 1.25em;
-  margin-bottom: 1em;
-}
-
-.xpinstallIconContainer {
-  width: 32px;
-  height: 32px;
-  margin-inline-end: 5px;
-}
-
-.xpinstallItemName {
-  font-weight: bold;
-}
-
-.xpinstallItemSigned {
-  font-style: italic;
-  font-size: 0.9em;
-}
-
-.xpinstallItemURL {
-  -moz-appearance: none;
-  border: none;
-  padding: 0;
-  background-color: -moz-Field;
-  color: -moz-FieldText;
-  margin-top: 1px;
-  margin-bottom: 1px;
-  margin-inline-start: 6px;
-  margin-inline-end: 5px;
-}
-
-.xpinstallItemIcon {
-  max-width: 32px;
-  max-height: 32px;
-  list-style-image: url("chrome://mozapps/skin/extensions/extensionGeneric.svg");
-}
-
-installitem[type="theme"] .xpinstallItemIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/themeGeneric.png");
-}
-
-installitem[type="locale"] .xpinstallItemIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/localeGeneric.png");
-}
-
-installitem[type="plugin"] .xpinstallItemIcon {
-  list-style-image: url("chrome://mozapps/skin/plugins/pluginGeneric.png");
-}
-
-installitem[type="dictionary"] .xpinstallItemIcon {
-  list-style-image: url("chrome://mozapps/skin/extensions/dictionaryGeneric.png");
-}