Version 40.0.3, first offered to Release channel users on August 27, 2015
Check out "What’s New" and "Known Issues" for this version of Firefox below.
As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla. If interested, please see the complete list of changes in this release.
We'd also like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox!