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  Click&Clean for Firefox 1 Jan 15

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  HTTPS Everywhere for Firefox 11 May 16

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  About:addons-memory for Firefox 25 Jan 15

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  Mozilla Archive Format 22 Jan 15

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

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  FEBE 16 Apr 15

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  Fasterfox Lite 11 Apr 15

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  Simple Adblock 16 Apr 15