I have the same problem. On my box the unresponsiveness is also connected to excessive hard drive access. It seems that when it happens, files urlclassifier3.sqlite and urlclassifier3.sqlite-journal are being accessed. I did some digging around the net and found this: https://bugzilla.mozilla.org/show_bug.cgi?id=402469. That might be related?
Some people also made the problem disappear after disabling "Tell me if the site I'm visiting..." from Preferences -> Security or by reducing the number of days from Privacy -> History. I cleared the profile altogether and haven't had the issue since. None of those are a real fix though. -- firefox 3.0b5 goes uninterruptible for a few seconds during normal browsing https://bugs.launchpad.net/bugs/213086 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