• 

  WiseStamp Email Signatures 1 Jan 15

• 

  LeechBlock 4 May 15

• 

  Ghostery (for Firefox) 14 Feb 15

• 

  OutWit Docs 26 Jan 15

• 

  FireShot for Firefox: Capture + Annotate Webpage Screenshots 26 Jan 15

• 

  HTML Validator (based on CSE HTML Validator) 21 Sep 15

• 

  Hola Unblocker for Firefox 1 Jan 15

• 

  BlogEverywhere Blogbar for FireFox 1.5+ 23 Sep 15