I just started looking into the extensions available for Firefox and already, Sessionsaver is a godsend! My computer woes have me rebooting all of the time lately and it always seems to be when I have a lot of browser tabs open that I don’t necessarily want to lose. Now I re-open Firefox and, Bam! – everything’s right where I left off before chaos broke loose! Brilliant…
Here’s a great link for some other useful add-ins:
http://pchere.blogspot.com/2005/12/50-best-firefox-extensions-for-power.html