I'm going to put this one to "invalid" for now. The graying out just means that firefox is not responding, possibly because of the website you visit (either a problem with the website, or a problem with firefox).
Your best option would be to report the problem upstream via http://hendrix.mozilla.org/ (via the firefox website) or in firefox itself using Help/Report Broken website if you can still use firefox before it becomes grayed out. It's not going to fixed in the current firefox release, if the firefox developers find the problem it wil be solved in the next beta. ** Changed in: firefox-3.0 (Ubuntu) Status: New => Invalid -- graying window in Firefox 3 https://bugs.launchpad.net/bugs/226546 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs