This still affects Ubuntu MATE 15.10 release candidate. How to reproduce:
* Use MATE Tweak to change the Window Manager to Compiz. * Open Firefox with common content as it was the last time (history is on to remember previous opened tabs). * Minimize Firfox Window * Use CRTL + ALT + t to open a terminal * Execute 'firefox http://www.ubuntu.com' * Firefox will will restore but will not be missing window decorations. Also described here: * https://ubuntu-mate.community/t/discovered-a-correlate-with-the- windows-decoration-bug-in-compiz/1792 ** Changed in: compiz (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs