Support for <popup> is going away (bug 578322). <popup> has been obsoleted for some time and support was flaky (e.g. bug 571567).
Most of this this is done in bug 572682 already.
I guess we should remove <popup> support from Modern too.
Created attachment 457326 [details] [diff] [review] [checked-in] Patch Sv1.0 rest of suite/ This patch applies on top of that from Bug 572682. Part 1 - Rest of Suite/ Part 2 will deal with mailnews/ and editor/ui/ which require r/sr
Comment on attachment 457326 [details] [diff] [review] [checked-in] Patch Sv1.0 rest of suite/ Pushed to comm-central http://hg.mozilla.org/comm-central/rev/54a1b8832eaf