Ever since FireFox 3 beta was released it caused more problems than it actually solved. With addons not working, history clearing problems and even installation issues its time for a change. The new issue is with I/O resource consumption by FF. Actually it is not new. I had noticed earlier on that

“C:\Documents and Settings\Ajith\Local Settings\Application Data\Mozilla\Firefox\Profiles\clyao2bz.default\urlclassifier3.sqlite ”

was always in the Disk read/write queue. But I didn’t care much.

Last day after installing a new RAM module, expecting an improved performance, I was surprised to see that there was a lot of disk usage. So I decided to Search with the file name and came out with some quiet interesting facts. The file is actually used as a cache for the reported web sites. So every time you start a new profile, FF starts downloading the file and causes the excessive resource usage. But I still wonder how a 20Mb file download would cause so much CPU and I/O usage.

Solution

The solution is rather simple. Just turn off the “Report Attack site” function from under Tools>> Option>> Privacy and everything will come back to normal.

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