Here is the list of the firefox plugins that I use.

• Development
  • http://www.getfirebug.com/ http://www.westciv.com/xray/index.html
  • http://chrispederick.com/work/web-developer/
  • Website speed test:
    • extended status bar? :https://addons.mozilla.org/en-US/firefox/addons/versions/1433
    • hammerhead: Make requests to a urls, show the response times
• http headers – http://livehttpheaders.mozdev.org/
• form filler – http://informenter.mozdev.org/
• Bookmark organzier – not tried! http://www.xmarks.com/
• Auto copy
• Download them all
• Spell checker in Bulgarian – http://bgoffice.sourceforge.net/mozilla/index.html
• Design
  • Custom css for external pages http://userstyles.org/stylish/
  • Measure it – http://www.kevinfreitas.net/extensions/measureit/
  • IE-tab – http://ietab.mozdev.org/
• image zoom – http://imagezoom.yellowgorilla.net/
• ads block
  • all ads – http://adblockplus.org/en/
  • flash block http://flashblock.mozdev.org/
• google preview http://ackroyd.de/googlepreview/
• gmail
  • better gmail2