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  HTTPS Everywhere for Firefox 11 May 16

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  Annotary 21 Jan 15

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  iMacros for Firefox 23 Jan 15

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  ZenMate VPN for Firefox 15 Aug 18

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  Tab Scope 16 Apr 15

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  AdF.ly Skipper 25 Jan 15

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  DuckDuckGo Plus for Firefox 21 Jan 15

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  HTTP Header 16 Apr 15