Further to comment #5 by the reporter the issue was fixed by a configuration change.
** Changed in: firefox (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1485321 Title: Firefox 40 blank with no menu Status in firefox package in Ubuntu: Fix Released Bug description: Please do not ignore this bug report because it has not been submitted via Apport. Due to the severe issue with Firefox 40 I cannot currently complete the Apport submission process so am having to report this manually. Firefox was upgraded from 39.0.3+build2-0ubuntu0.12.04.1 to 40.0+build4-0ubuntu0.12.04.1 yesterday evening (15/08/2015) and now when it runs the entire window is grey with no content and there is no menu. The computer is running Xubuntu 12.04 Trying to run Firefox in safe mode results in a small window titled Firefox Safe Mode which contains just grey. When it is used to open help in the Xubuntu applications menu (no help displayed, only blank grey window) and the top right X window close symbol is clicked the 'Confirm close' window appears but it too is grey and has no content and I can only terminate the application using Task Manager. The same happens when I run Apport when it reaches the stage where Firefox is invoked. This may not be relevant but tcpdump shows when it was first opened Firefox 40 did communicate to ec2-54-200-163-149.us-west-2.compute.amazonaws.com so it is capable of connections. Disabling the Firefox Apparmor profile does not make any difference. I will try to provide any further information requested as best I can. If I can provide the requested information via e-mail that would be preferable as Firefox is not operational and if the previous version is reverted to it will not exhibit the bug. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1485321/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp