See what’s new in Firefox!

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.

53.0.2

Firefox Release

May 5, 2017

Version 53.0.2, first offered to Release channel users on May 5, 2017

Today's Firefox release makes Firefox faster and more stable with a separate process for graphics compositing (the Quantum Compositor). Compact themes and tabs save screen real estate, and the redesigned permissions notification improves usability. Learn more on the Mozilla Blog.

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

Fixed

Changed

  • The non-standard showDialog argument to window.find is now ignored (Bug 1348409)