Firefox 4 Beta

It all begins here:

Help make the next version of the world’s best browser.

Install the Beta

The Firefox 4 Beta includes the Feedback Add-on which includes you in user studies. No data will be sent to Mozilla without your permission. More information

Give us Feedback

Click the Feedback button at any time to tell us what you think. Read more about Test Pilot.

Tell Your Friends

  • Hey…

  • Woah!

Spread the word: the more beta users we have helping us make Firefox 4, the better the final product. Learn more about the beta.

Firefox 4 Beta includes Feedback Add-on based on Mozilla Test Pilot

Once you install the Firefox 4 Beta, you will notice the Feedback Add-on in the upper right corner. You can use this to provide instant feedback at any time. You will also be notified about user studies (run by Mozilla Test Pilot) which collect information about how you use Firefox, but not which websites you visit. You have control over your participation, and can choose to opt out of any study, or see what data has been collected. You will be asked before any data is sent to Mozilla. Please see the Feedback Add-on privacy policy for more information.