It seems to have been caused by the AdBlock Plus extension. Disabling it is enough to bring things back in order in firefox 58
-- 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/1745960 Title: blank screen after upgrade to firefox:amd64 58.0+build6-0ubuntu0.14.04.1 Status in firefox package in Ubuntu: New Bug description: In Ubuntu 14.04 I recently updated firefox 57.0 to 58.0+build6-0ubuntu0.14.04.1. Installation was smooth, but the firefox screen has been blank since. Everything is working again if I downgrade to 57.0.4+build1-0ubuntu0.14.04.1 Is anybody experiencing this problem? Being concerned about security (it was a security update), I have switched to firefox-esr. Does this sound reasonable? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1745960/+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