I got the same problem on one of my Internet Café machines since upgrading from 12.04.5 to 14.04.1:
It is a known problem (http://wiki.ubuntuusers.de/Firefox/Tipps) and can solved by this: - open about:config - search for gfx.xrender.enabled --> change to false BUT: This is ONLY working for USERS, not for Guests! So this machine can *not* used for internet purposes and i'm not allowed to change the browser! So for me it is a high priority problem! For more informations please feel free to contact me my mail or post here! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1363024 Title: URL bar on Firefox 31 does not show the page address (black block on it) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1363024/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
