This bug was fixed in the package compiz - 1:0.9.12.2+16.04.20160311-0ubuntu1
--------------- compiz (1:0.9.12.2+16.04.20160311-0ubuntu1) xenial; urgency=medium [ Alberts Muktupāvels ] * Avoid GtkStyleContext warnings with GTK+ 3.20+. * Remove GWDSettingsXPropertyStorageInterface. * gtk-window-decorator: Remove unused setting from mutter. [ Martin Wimpress ] * mate.ini: Enable 'Keep Minimzed Windows' by default for the MATE profile (LP: #1067951) [ Sam Spilsbury smspil...@gmail.com ] * Fix broken tests -- Marco Trevisan (Treviño) <m...@3v1n0.net> Fri, 11 Mar 2016 08:26:45 +0000 ** Changed in: compiz (Ubuntu) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1067951 Title: Firefox loses window decorations in GNOME Classic and MATE with Compiz To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1067951/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp