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Rated 5 out of 5 stars
This one of the add-ons I install first when setting up a fresh install of Firefox. A must-have. Does the job, and well (and has lots of nifty little extras, like the ability to check whether a site is down only for you, and where it is located more precisely).This review is for a previous version of the add-on (184.108.40.206-signed).