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Browser Support for Website Tools


This information was updated in February 2018.

In an effort to provide more transparency and a better experience for all of our users, we’re formalizing the list of browsers AddThis officially supports. We get over 1.9 billion users every day from 15 million websites around the globe. On any given day we see almost 2,400 different browser versions. More than 650 of these have less than ten views apiece. Therefore, we get a pretty good idea of what browsers people use. This means we have to think hard about what browsers we support and how we support them.

Deciding Which Browsers to Support

This is a decision we take very seriously. We need to balance the cost to support a browser against the effects of not supporting it. As such, we have divided the browsers we support into two tiers.

Our first tier includes the browsers we test our website, the dashboard, and our client tools against. This list covers the most recent versions of:

  • Chrome
  • Firefox
  • Internet Explorer 11
  • Edge
  • Safari
  • Android Browser
  • Mobile Safari
  • Mobile Chrome

Our second tier includes browsers that we don’t perform QA on. However, we will fix features if they break the user experience. These include the following:

  • Internet Explorer 9 and above
  • Firefox ESR
  • Internet Explorer Mobile

Any other browsers not listed aren’t officially supported by AddThis. Limiting the browsers we support allows us to focus on releasing new advanced features, while also providing a good user experience for as many people as possible.

How You Can Help

In order for us to provide you with the best user experience possible, we need your assistance with encouraging your users to use the latest web browsers. Educate your users that they can upgrade their browsers quickly and easily. Lobby within your organization to install and support the latest browsers. Develop well written sites using modern web standards, which goes a long way in encouraging upgrades. Together we can make sure everyone sees the web the way it’s meant to be seen.