Favorite Firefox add-ons

There are quite a few Firefox addons I prefer to use. Next I will list them and give brief descriptions of each:

• Adblock Plus - Bye bye annoying advertisements!
  
• AutoPager - Tired of clicking around? AutoPager might help in this. It allows you to browse next pages of many popular sites just by loading them on the current page automatically.
• Flashblock - Adblock for Flash. Nuff' said.
  
• Greasemonkey - Greasemonkey allows you to extend web pages locally. In case you don't feel like writing extensions on your own, you might find a few at http://userscripts.org/.
• Web Developer - A definite add-on for a web developer.
• Zotero - If you do any research you might find Zotero extremely handy.
• Omnibar - Combines search with location bar just like in Google Chrome
  

In addition Firebug is most useful tool in case you happen to do any JavaScript development. It's quite possible I have missed some excellent add-ons. In that case let me know. :)

[edit]
I thought it might be nice to hide the menubar of Firefox. With a bit of poking around I managed to find Hide Menubar that does the trick. Should you wish to see the menubar again, just hit alt. :)
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[edit]
Added Omnibar.

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