Using Firefox to maximize productivity

I'm on the web constantly for work, so I'm always on the lookout for add-ons and tools to smooth my work day. Here's a few of my favorites:

• Adblock Plus - faster browsing, period.
  
• Table2Clipboard - copies any HTML table into Excel, perfectly.  Alleluia!
  
• FaviconizeTab - shrink Firefox tabs to the size of that little logo.  Great for Gmail and Calendar and leaves more room for working tabs.

• Better Gmail - that little logo on Gmail shows my unread message count.  And changes color.  It has a few other slick interface improvements, too.
  
• Google Gears - lets me get my Gmail and Calendar without an internet connection.  Brilliant.
  
• TinyURL Generator - right click a link and get a short version.  Brilliant.

• Greasemonkey - enables everything else via Userscripts: takes down Facebook ads, cleans up RTM, adds download links to Youtube videos.