Get flash to fully experience Pearltrees
Not too long ago, someone downloaded the 3 billionth Add-on for Firefox. 3,000,000,000! That’s a lot of add-ons (and a lot of zeros to type!) These eight add-ons are the best of the best. They’re the most used, and with good reason. Let’s count down to number 1.
Seven years ago I started working on MozCC, an add-on for Firefox that exposed Creative Commons license information embedded in web pages.
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