Supported browsers

  • Updated
  • Optimizely Web Experimentation
  • Optimizely Performance Edge Available for Edge
  • Optimizely Personalization
  • Optimizely Feature Experimentation
  • Optimizely Full Stack (Legacy)

Requirements for building campaigns and experiments

Only the current version of the Desktop Chrome browser is supported for building experiments and campaigns within the Optimizely application itself. Chrome's developer tools are user-friendly and work smoothly with Optimizely.

If you run into unexpected behavior when using Optimizely in a different browser, try Chrome.

Supported browsers

Site visitors see your campaigns and experiments if they are using any of these widely used browsers:

For desktop

  • Google Chrome
  • Mozilla Firefox
  • Apple Safari
  • Microsoft Edge
  • Opera

For mobile

  • Android Chrome
  • Apple Mobile Safari
  • Opera
  • UC Browser
  • Samsung Browser Available for Edge
  • Facebook in-app browser Available for Edge
Microsoft ended support for Internet Explorer (IE) 11 on June 15, 2022. As a result, Optimizely Experimentation ended support for IE 11 starting April 15, 2023.

For Optimizely Performance Edge Available for Edge

If a visitor visits a page from a browser that is not listed above, Optimizely Performance Edge may choose to not run experiments. In that event, both the Edge Decider and microsnippet will detect that the visitor’s browser is unsupported and abort before doing any significant work. This ensures that Optimizely Performance Edge has a negligible performance impact for such visitors.