This just started happening to me in Ubuntu 15.04 with Firefox 42.0, but only if I run Firefox under the old vtwm window manager:
Firefox 42.0 "Mozilla Firefox for Ubuntu" canonical - 1.0 under Ubuntu 15.04. The browser now (in the past week or two) locks up when requested to enter Full Screen if not running under any window manager (or when running under an old window manager such as vtwm that doesn't have all the modern hooks). Reproduce: 1. Start up Ubuntu 15.04 with the full Unity desktop installed. 2. Clean out (remove or rename) $HOME/.mozilla to start clean. 3. Open Firefox. 4. Note that using F11 correctly resizes Firefox to Full Screen and back down. 5. Kill the window manager: run: initctl stop unity7 6. Return to Firefox and try F11 or turn on "Full Screen" from the menu. 7. Browser locks up. Changing tabs doesn't refresh the screen unless you do something to trigger an X11 refresh such as opening a menu. F11 does *not* undo the damage - the browser stays locked up. Using the Firefox menu to disable (un-check) "Full Screen" also does nothing. Nothing works. 8. Start an old window manager such as "vtwm". No change. Firefox is still locked up. 9. Exit vtwm. 10. Re-start the Unity window manager: run: initctl start unity7 11. Return to Firefox and use F11 or the menu "Full Screen" a few times and Firefox is working again. 12. Repeat as needed. ** Summary changed: - Firefox Screen Freeze + Firefox Screen Freeze in Full Screen mode -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1002453 Title: Firefox Screen Freeze in Full Screen mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1002453/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
