I have the same problem using 7.10 final (fully updated). I have narrowed the problem down a bit however. When firefox "freezes" to the grey, it will return to normal color when working again, UNLESS, it is minimized during the "grey" period.
-- dave ** Attachment added: "Screenshot-Play Games, Free Online Games at AddictingGames - Mozilla Firefox.png" http://launchpadlibrarian.net/10907190/Screenshot-Play%20Games%2C%20Free%20Online%20Games%20at%20AddictingGames%20-%20Mozilla%20Firefox.png -- [Hardy] Compiz makes Firefox window grey (gray) when still usable https://bugs.launchpad.net/bugs/174986 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
