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  DownThemAll 1 Jan 15

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  HTTPS Everywhere for Firefox 11 May 16

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  FireFTP 1 Jan 15

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  Ghostery (for Firefox) 14 Feb 15

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  Omnibar 15 Apr 15

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  Twitter App 22 Jan 15

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  Grammarly Lite for Firefox 22 Jan 15

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  ScrapBook for Firefox 11 Apr 15