Created attachment 8623504 [details] print_screen.jpg User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:38.0) Gecko/20100101 Firefox/38.0 Build ID: 20150525141253 Steps to reproduce: Firefox 38.0.5 in Mac OS X has a bug, after a full screen mode. Actual results: After a video is viewed in full screen mode, the "Minimize/Maximize/Close" buttons are suddenly disappear. Requires restart Firefox for repair. Expected results: the "Minimize/Maximize/Close" should be always present. Please see the print screen: I no longer have "Minimize/Maximize/Close" buttons.
Summary: "Minimize/Maximize/Close" buttons are suddenly disappear after a video is viewed in full screen mode. Requires restart Firefox for repair. In Mac OS x → OSX 10.6: "Minimize/Maximize/Close" buttons disappear after a video is viewed in full screen mode and you return to normal mode
Have you tried if you see this issue in a new profile, too? You can find details on how to create a new profile (without changing anything in your regular profile!) at https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles . Have you tried if you see this issue in Firefox's safe mode, too? You can restart Firefox into safe mode by using the 'Restart Firefox with add-ons disabled' entry in the 'Help' menu. This will also disable graphics hardware acceleration and some JS engine optimizations, not just extensions and plugins. See https://support.mozilla.org/kb/troubleshoot-firefox-issues-using-safe-mode .
The problem remains in a new profile. The problem remains in safe mode. The problem remains in Firefox 39. A similar problem can be seen when not using a video but just when using the "Enter Full Screen" menu item's keyboard shortcut. With a browser window open, press Command-Control-F to enter full screen mode, wait until the menu bar hides and the title bar and address bar slide up off the top of the screen, then press Command-Control-F again, and the close, minimize and zoom buttons are gone. It's not necessary to restart Firefox to fix the problem; it suffices to close the window and open a new one.
I also have this issue after viewing a full screen video on youtube. I have to close (command+q) and restart Firefox to get the buttons back.
Firefox 40.0 seems to have fixed it. Tried a fullscreen video on youtube plus an html5 video on my website. :D
baubau1907, Thank you for taking time to report this. Are you still able to reproduce this in the latest version ?
Closing this as works for me. It is not reproducible in the latest version. Please feel free to reopen the bug if the issue reproduces in the current versions. Thanks
Status: UNCONFIRMED → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → WORKSFORME
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