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.

Firefox Release

September 30, 2015

Version 41.0.1, first offered to Release channel users on September 30, 2015

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



  • Fix a startup crash with some Intel Media Accelerator 3150 graphic cards (1207665)

  • Fix a graphic crash, occurring occasionally on Facebook (1178601)

  • Fix a regression in the bookmark creation (1206376)

  • Fix potential hangs with Flash plugins (1185639)

  • Fix a startup crash related to Yandex toolbar and Adblock Plus (1209124)

  • Crash when serializing a principal with unknown app id (1205456)

All Firefox downloads