Does it seem that Firefox 3.5 is a little sluggish when it starts on your Windows-powered machine?
Due to some unknown reason, Firefox on Windows pulls certain file locations for security reasons. In turn, having too many temporary, history or recent document files will slow down Firefox 3.5’s data generation process. A bug has been filed about this, but in the mean time – the best thing you can do to help fix it is to do a little house cleaning.
The fix here is to browse through and clear both Internet Explorer’s history and cache and Firefox’s history and cache as much as you can. You can find more help with this process at these resources:
I had not noticed this problem too much – then again, I have my Firefox temp files set to clear every time I close the browser and I hardly ever use Internet Explorer. How about you?
This problem was fixed in Firefox 3.5.1. To check for updates, be sure to go to Help > “Check for Updates…” in Firefox. Thanks to the Firefox development team for the speedy update!