1 files changed, 26 insertions, 5 deletions

diff --git a/application/palemoon/base/content/tabbrowser.xml b/application/palemoon/base/content/tabbrowser.xml
index 10f109ce8..a0ee59350 100644
--- a/application/palemoon/base/content/tabbrowser.xml
+++ b/application/palemoon/base/content/tabbrowser.xml
@@ -3096,13 +3096,25 @@
               break;
             }
             case "Findbar:Keypress":
-              if (!gFindBarInitialized) {
-                // If the find bar for this tab is not yet alive, change that,
-                // and make sure we return the result:
-                return gFindBar.receiveMessage(aMessage);
+              // If the find bar for this tab is not yet alive, only initialize
+              // it if there's a possibility FindAsYouType will be used.
+              // There's no point in doing it for most random keypresses.
+              if (!gFindBarInitialized && aMessage.data.shouldFastFind) {
+                let shouldFastFind = this._findAsYouType;
+                if (!shouldFastFind) {
+                  // Please keep in sync with toolkit/content/widgets/findbar.xml
+                  const FAYT_LINKS_KEY = "'";
+                  const FAYT_TEXT_KEY = "/";
+                  let charCode = aMessage.data.fakeEvent.charCode;
+                  let key = charCode ? String.fromCharCode(charCode) : null;
+                  shouldFastFind = key == FAYT_LINKS_KEY || key == FAYT_TEXT_KEY;
+                }
+                if (shouldFastFind) {
+                  // Make sure we return the result.
+                  return gFindBar.receiveMessage(aMessage);
+                }
               }
               break;
-
           }
         ]]></body>
       </method>
@@ -3169,6 +3181,10 @@
                                               this.mCurrentBrowser);
           }
           messageManager.addMessageListener("DOMWebNotificationClicked", this);
+
+          // To correctly handle keypresses for potential FindAsYouType, while
+          // the tab's find bar is not yet initialized.
+          this._findAsYouType = Services.prefs.getBoolPref("accessibility.typeaheadfind");
           messageManager.addMessageListener("Findbar:Keypress", this);
         ]]>
       </constructor>
@@ -3429,6 +3445,7 @@
           tab.setAttribute("onerror", "this.removeAttribute('image');");
           this.adjustTabstrip();
 
+          Services.prefs.addObserver("accessibility.typeaheadfind", this._prefObserver, false);
           Services.prefs.addObserver("browser.tabs.", this._prefObserver, false);
           window.addEventListener("resize", this, false);
           window.addEventListener("load", this, false);
@@ -3444,6 +3461,7 @@
 
       <destructor>
         <![CDATA[
+          Services.prefs.removeObserver("accessibility.typeaheadfind", this._prefObserver);
           Services.prefs.removeObserver("browser.tabs.", this._prefObserver);
         ]]>
       </destructor>
@@ -3509,6 +3527,9 @@
 
         observe: function (subject, topic, data) {
           switch (data) {
+            case "accessibility.typeaheadfind":
+              this._findAsYouType = Services.prefs.getBoolPref(data);
+              break;
             case "browser.tabs.closeButtons":
               this.tabContainer.mCloseButtons = Services.prefs.getIntPref(data);
               this.tabContainer.adjustTabstrip();