AddThis offers online tools that leverage data from our network of 15 million sites. We help publishers understand their audiences and drive traffic to what matters.



AddThis for Firefox Surpasses 3 Million Installs

We are humbled by another great milestone here at AddThis – our Firefox browser extension has surpassed 3 million downloads.

AddThis for Firefox was originally created at a Clearspring Hackathon and it has been a thrill to watch the success of this product. It goes to show how beneficial it is for end users to have that persistent one-click access to sharing regardless of where they are on the web.

Thanks again to a wonderful and supportive community. Your honest feedback has helped shape this product – a product that proves its great function through the numbers.

Download the AddThis for Firefox plug-in if you haven’t already or one of our other handy dandy browser extensions. AddThis for Chrome maintains over 26k weekly installs and AddThis for Internet Explorer has reached over 1.4M downloads.

  • Guarda Moveis

    very good extension

  • I love AddThis. I use it a lot.
    Thanks !

  • zombear

    Looks like a very useful bookmarking tool, installing now.

  • Louie Sison

    Congratulations AddThis! More power to your site.

  • ubs

    Yes best as it said.
    Downloaded & installed.
    Liked it.


  • Just got the Chrome extension – much easier for posting to Facebook. Brilliant.

  • Charlene

    Whoever thought of add this is brilliant. I love it!

  • Had it awhile now and I totally agree. Thanks for the updates.

  • One of the most powerful tool !
    Thanks to your team for helping us .

  • Useful tools of Addthis.