Firefox Release Notes

Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.

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Your system may not meet the requirements for Firefox, but you can try one of these versions:

Download Firefox — English (US)

Version 50.1.0, first offered to Release channel users on December 13, 2016

We'd also like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox!

Due to an Apple touch bar bug, Firefox on recent MacBook Pro may crash when open for long periods or crash after resuming from sleep. Apple reports to have a fix for this in the currently unreleased OS X 10.12.3

Get the most recent version

Download Firefox — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Download Firefox — English (US)