I'm still seeing this in Ubuntu 16.04 fully updated (2016-02-18) with gnome-flashback and compiz. The minimize with alt+space/maximize workaround is still valid.
Hopefully this will be fixed for 16.04! -- 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