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I did not know that such addon exist, came across accidentally. I get tired of using Win + R window to clean up text from formating. Is there any chance to add shortcut like Ctrl + Shift + C?

UPDATE: thanks for a properties tip, I had no idea about its existence. Seems like Alt + Shift + C is also taken by system tool... however, I found addon's another usage - translate.google.com, until now I should use notepad to remove formatting from translated text (especially for French and Chinese) but this tool saves so much time!

Questa recensione riguarda una versione precedente (1.4) del componente aggiuntivo. 

Dear add-on user,
Thanks for your review and rating. Shortcut Ctrl+Shift+C is ocupied by Web Developer menu. This is Firefox default menu. You can adjust your shortcut using option in the Copy Plain Text 2 options window.