Disable add-on compatibility checking

mobile/android/app/mobile.js

 /* 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/. */
 
 #filter substitution
 
 // For browser.xml binding
 //
 // cacheRatio* is a ratio that determines the amount of pixels to cache. The
 // ratio is multiplied by the viewport width or height to get the displayport's
@@ skipping 172 matching lines @@
 pref("extensions.update.interval", 86400);
 pref("extensions.dss.enabled", false);
 pref("extensions.dss.switchPending", false);
 pref("extensions.ignoreMTimeChanges", false);
 pref("extensions.logging.enabled", false);
 pref("extensions.hideInstallButton", true);
 pref("extensions.showMismatchUI", false);
 pref("extensions.hideUpdateButton", false);
 pref("extensions.strictCompatibility", false);
 pref("extensions.minCompatibleAppVersion", "11.0");
+
+// We need to disable compatibility checking in Adblock Browser for now,
+// since it uses different versions than Firefox, and we don't want to modify
+// the embedded Adblock Plus at this point. In the future, Adblock Browser
+// should have its own app ID, and we should properly declare compatibility in
+// Adblock Plus.
 pref("extensions.checkCompatibility.nightly", false);

[Felix Dahlke, 2015/03/01 07:01:52]

MOZ_COMPATIBILITY_NIGHTLY is set, because MOZ_UPDATE_CHANNEL is not set to
either of "aurora", "beta", "release" or "esr". Don't want to make a too
intrusive change here, so I think it's best to keep it at that. Also, it means
we don't have to keep the version here in sync with the app version.

[Wladimir Palant, 2015/03/01 18:02:24]

We have a toolkit compatibility entry, any idea why it isn't working? Probably
because we have an explicit entry matching the current app? Then maybe removing
the Fennec entry from the Adblock Plus build would be sufficient.

Note that this pref won't work for a release build.

[Felix Dahlke, 2015/03/02 06:22:32]

Well, giving the browser a different app ID and adjusting
extensions.minCompatibleAppVersion does make ABP pass the compatibility check.

However, as discussed in the card
(https://trello.com/c/kGF3T6rx/54-change-the-app-id), ABP doesn't actually work
if we change the app ID, I'm afraid we'd have to make changes we don't want to
make right now.

 
 pref("extensions.update.url", "https://versioncheck.addons.mozilla.org/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=%APP_VERSION%&appOS=%APP_OS%&appABI=%APP_ABI%&locale=%APP_LOCALE%&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%");
 pref("extensions.update.background.url", "https://versioncheck-bg.addons.mozilla.org/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=%APP_VERSION%&appOS=%APP_OS%&appABI=%APP_ABI%&locale=%APP_LOCALE%&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%");
 
 pref("extensions.hotfix.id", "firefox-android-hotfix@mozilla.org");
 pref("extensions.hotfix.cert.checkAttributes", true);
 pref("extensions.hotfix.certs.1.sha1Fingerprint", "91:53:98:0C:C1:86:DF:47:8F:35:22:9E:11:C9:A7:31:04:49:A1:AA");
 
 /* preferences for the Get Add-ons pane */
 pref("extensions.getAddons.cache.enabled", true);
@@ skipping 667 matching lines @@
 // The mode of home provider syncing.
 // 0: Sync always
 // 1: Sync only when on wifi
 pref("home.sync.updateMode", 0);
 
 // How frequently to check if we should sync home provider data.
 pref("home.sync.checkIntervalSecs", 3600);
 
 // Enable device storage API
 pref("device.storage.enabled", true);