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Thesaurus: Synonyms and Antonyms 1.0.1-signed.1-signed Requires Restart
Makes finding synonyms and antonyms a snap! Integrates with web applications.
About this Add-on
You can use it with all your favorite web-based writing applications: simply select a word and right click to find all synonyms or antonyms for that word.
Also adds an (optional) convenient toolbar/addon bar button.