https://bugzilla.mozilla.org/show_bug.cgi?id=756811#c16 > Ekanan Ketunuti 2012-05-29 08:00:32 PDT > > On Thai keyboard I use Ctrl and ช (+/= key in English) rather than Ctrl and Shift and ๅ. > > Since cset c9ce0e49040a I cannot use Ctrl and ช for zoom-in. The key's virtual keycode is VK_OEM_PLUS. It's odd, the key cannot input '+' and '1' key can input '+' with Shift key. So, the key shouldn't be VK_OEM_PLUS. However, other applications checks the virtual keycode for kicking shortcut key handlers. So, we should add special case for it. This is a regression of bug 630810, so, this must be fixed on Fx15.

testing on tryserver: https://tbpl.mozilla.org/?tree=Try&usebuildbot=1 This makes inconsistency between other platforms on some keyboard layout. However, it's better to emulate native application manners.

Thank you for fixing this!

(In reply to Ekanan Ketunuti from comment #3) > Thank you for fixing this! Thank *you* for your reporting. That always helps us.

https://hg.mozilla.org/mozilla-central/rev/7f259a56c7c0 (In reply to Ekanan Ketunuti from comment #3) > Thank you for fixing this! The fix will be present in tomorrow's Nightly / Firefox 15 when it reaches aurora/beta/release :-)

This is fixed, and possibly uncommon, so untracking.