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  Greasemonkey 1 Jan 15

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  WiseStamp Email Signatures 1 Jan 15

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  FoxLingo 15 Apr 15

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  Check4Change 5 May 15

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  WOT (Web of Trust) for Firefox 20 Sep 15

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  iMacros for Firefox 23 Jan 15

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  Facebook Messenger 26 Jan 15

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  Simple Adblock 16 Apr 15