Issue 4765 - Change minimum compatible versions

modules/libpref/init/all.js

 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* 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/. */
 
 /* The prefs in this file are shipped with the GRE and should apply to all
  * embedding situations. Application-specific preferences belong somewhere else,
  * for example xpfe/bootstrap/browser-prefs.js
  *
  * Platform-specific #ifdefs at the end of this file override the generic
@@ skipping 4376 matching lines @@
 pref("browser.history.allowPushState", true);
 pref("browser.history.allowReplaceState", true);
 pref("browser.history.allowPopState", true);
 pref("browser.history.maxStateObjectSize", 655360);
 
 // XPInstall prefs
 pref("xpinstall.whitelist.required", true);
 // Only Firefox requires add-on signatures
 pref("xpinstall.signatures.required", false);
 pref("extensions.alwaysUnpack", false);
-pref("extensions.minCompatiblePlatformVersion", "2.0");
+// Changed min compat version. See https://issues.adblockplus.org/ticket/4765
+pref("extensions.minCompatiblePlatformVersion", "1.0");
 
 pref("network.buffer.cache.count", 24);
 pref("network.buffer.cache.size",  32768);
 
 // Desktop Notification
 pref("notification.feature.enabled", false);
 
 // Web Notification
 pref("dom.webnotifications.enabled", true);
 #if !defined(RELEASE_BUILD)
@@ skipping 698 matching lines @@
 pref("dom.requestcache.enabled", false);
 
 // Expose Request.context. Currently disabled since the spec is in flux.
 pref("dom.requestcontext.enabled", false);
 
 pref("dom.mozKillSwitch.enabled", false);
 
 pref("toolkit.pageThumbs.screenSizeDivisor", 7);
 pref("toolkit.pageThumbs.minWidth", 0);
 pref("toolkit.pageThumbs.minHeight", 0);