Build Identifier: http://hg.mozilla.org/mozilla-central/rev/fafaf614791f Mozilla/5.0 (Windows NT 6.1; WOW64; rv:11.0a1) Gecko/20111206 Firefox/11.0a1 ID:20111206031117 If toolbarbutton type="menu" with CSS -moz-transform: scaleX(-1) The menuitem label is unclickable. Only the menuitem icon are clickable. This causes Bug 700975. toolbarbutton.button1, toolbarbutton.button1 .toolbarbutton-text { -moz-transform: scaleX(-1); } <toolbarbutton class="button1" label="1Ooo" type="menu" orient="vertical"> <menupopup> <menuitem label="label111111" class="menuitem-iconic"/> <menuitem label="label222222" class="menuitem-iconic"/> <menuitem label="label333333" class="menuitem-iconic"/> </menupopup> </toolbarbutton> Reproducible: Always 1. Open testcase Actual Results: The menuitem label is unclickable. Only the menuitem icon is clickable. Expected Results: The menuitem label should be clickable.

Any progress?

I cannot reproduce anymore http://hg.mozilla.org/mozilla-central/rev/433cfbd2a0da Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20120305 Firefox/13.0a1 ID:20120305031045 Fixed by Bug 664707