• 

  Flagfox 1 Jan 15

• 

  ThinkFree Viewer 21 Sep 15

• 

  PDF Download 6 Feb 16

• 

  DuckDuckGo Plus for Firefox 21 Jan 15

• 

  DictionarySearch 27 Apr 18

• 

  WOT (Web of Trust) for Firefox 20 Sep 15

• 

  LeechBlock 4 May 15

• 

  Mozilla Archive Format 22 Jan 15