The statusMessage on the chat tool bar changes the width when going in editing mode. This makes jumping every element on the right of the statusMessage.
Created attachment 606957 [details] [diff] [review] Give statusMessage a width This patch defines a width in the main css file to apply on every theme (also third party). The statusMessage is still flexing as before but doesn't change the width when in editing mode.
Comment on attachment 606957 [details] [diff] [review] Give statusMessage a width Finally managed to duplicate the bug with a fresh profile. Patch looks good!
http://hg.mozilla.org/comm-central/rev/6ed7a2070693 (sorry, I forgot the ui-r= in the commit message)
Comment on attachment 606957 [details] [diff] [review] Give statusMessage a width [Approval Request Comment] I think we should take this fix on aurora as having toolbar items jumping around when clicking one of them is really unpleasant.