For the people using Firefox Beta 5 on Linux. You probably noticed a curious bug where Firefox freezes for a moment accompanied by extreme CPU load and disk usage. Well, the problem is that Firefox3’s support for anti-phishing is saved to a SQL-lite database that grows larger than its cache can handle. The fix is to disable the anti-phishing features and delete the files beginning with “urlclassifier” from your profile. After doing this I haven’t had any problems since. The SQL-lite database grows quite large when these problems start occurring, 18 Meg for me.
-rw-r--r-- 1 ebrake ebrake 18M May 11 12:40 ./urlclassifier3.sqlite