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  Twitter App 22 Jan 15

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  Disconnect for Firefox 9 Dec 14

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  Ghostery (for Firefox) 14 Feb 15

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  Re-Pagination 15 Apr 15

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  Walnut for Firefox 21 Jan 15

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  DictionarySearch 27 Apr 18

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  SimilarWeb for Firefox 23 Jan 15

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  NoSquint 21 Jan 15