Firefox Release

August 13, 2015

Version 40.0.2, first offered to Release channel users on August 13, 2015

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


  • Enabled API allowing Windows 10 users to open settings dialog (1193196)


  • mozalloc.lib was missing from the xulrunner package (1168291)

  • Fix a startup crash with some combination of hardware and drivers (1160295)

All Firefox downloads