DOTDOH

The cause of the slow startup is due to a strange implementation within Firefox which scans the Temporary folder within Windows to generate randomness. Unfortunately as some temporary folders have not been cleared in decades, this buildup of files causes Firefox 3.5 to take forever booting up

A guide on how to change your Firefox’s UserAgent String using the User Agent Switcher Plugin for Firefox to fool websites into thinking that you are not a Firefox browser

The steps detailed here will allow you to change the UserAgent string of your Firefox web browser to masquerade as any other browser or bot on the net. The changes made using the following steps will be reset to default upon shutting down of your firefox browser.

A list of all the UserAgent Strings from various browsers / toolbars and even Spiders

A tutorial on how to permanently changing the Firefox UserAgent String.