Absolutely awesome.

http://www.pcmag.com/article2/0,1759,1758849,00.asp

My recommendations:

BugMeNot: right click on any entry form and get a username, password from bugmenot automatically

DictionarySearch: highlight and right click any word to get a dictionary entry for it

Foxytunes: control Itunes (or any media player) w/o having to leave the browser window

ForecastFox: see weather conditions in your browser. awesome

url2newtab: if you already have a website open, anything typed into the location bar will generate that site into a new tab.

 

......made a nerd very happy

Baseball-reference search.... that's a great one I found just the other day... It adds the Player search feature from baseball-reference into the search options in the upper right-hand search bar...

 

 

http://mycroft.mozdev.org/download.html

 

 

Go here, and DL it. You may have to search for "Baseball", otherwise it's under reference.

I don't remember if it's built into Firefox now or not but Sage is an RSS syndicator which I think is a great tool to have built into the web browser.

FoxyTunes is by far the coolest extension, all bowsers should have it.

google search

check spelling

bugmenot

Stumble!

are the ones I use the most.