What firefox add on is your favorite?

I'm using faster fox add on and i cannot tell the difference with or with out the add on I just installed it on my browser. lol

my all time favorite and i only use these two add-ons, first the download helper for downloading "stuff" and adblock to block annoying (sometimes) banner and adds..

i am also using many add ons but my favourite are two add ons. one is whosamongus for my website live visitors and another is cricket live score,so i don't need to open websites to view live score.

My favorite is Fast Dial because it makes all my favorite sites viewable and accessible in one page. But I also like the IE tab add-on since there are sites that I visit from time to time that only support IE. And here comes Fox-clocks that helps me keep tracks of time zones around the world. It's important to me because I have friends and relatives scattered all over the world.

i don't do that, most of online earning ways are insecurity,they can change your computer ,destroy your system, comparatively speaking, mylot is safety.