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  Wappalyzer 15 Apr 15

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  Lightbeam 1 Jan 15

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  HTTP Header 16 Apr 15

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  Ghostery (for Firefox) 14 Feb 15

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  Tab Scope 16 Apr 15

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  Copy as HTML Link 15 Apr 15

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  FoxyProxy 1 Jan 15

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  Awesome Screenshot for Firefox 11 Apr 15