Bug 962881 - Fix regression to y scrolling with x overflow:hidden. r=botond, a=1.3+
Bug 961047 - Ensure all mozbrowser iframes use APZ when APZ is enabled. r=kats, r=fabrice, a=1.3+
Bug 962516 - DataStore add() returns an error if the key is duplicated. r=ehsan, a=1.3+
Bug 963142 - Fix negative-rotation math error in takePicture(). r=dhylands, a=1.3+
Bug 963142 - Fix negative-rotation math error in startRecording(). r=dhylands, a=1.3+