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

March 16, 2016

Version 45.0.1, first offered to Release channel users on March 16, 2016

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


  • Fix some loading issues when Accept third-party cookies: was set to Never (1254856)

  • Fix a regression when using the location bar (1254503)

  • Fix an issue which could cause the list of search provider to be empty (1255605)

  • XSLTProcessor.importStylesheet was failing when <import> was used (1249572)

  • Fix a regression causing search engine settings to be lost in some context (1254694)

  • Bring back non-standard jar: URIs to fix a regression in IBM iNotes (1255139)

  • Fix a potential performance regression (Youtube for example) (1220502)


  • Disabled Graphite font shaping library

All Firefox downloads