+++ This bug was initially created as a clone of Bug #839627 +++ Trying to get one last upstream merge before the uplift. Changes since the last update: #2701 Updated Japanese locale #2702 Updated Dutch translations #2707 Disabling zoom buttons if zooming in or out is not possible anymore. #2703 Close findbar also when focus is away from it #2708 Removes unused isLocalStorageEnabled #2693 expose information about images on canvas #2690 Prevent text selection divs from overflowing page boundries #2715 fix image width/height for zoomed viewport #2717 Turkish Language #2711 Use asyncStorage.setItem for B2G #2727 Add feature tests for TextDecoder