Firefox ESR
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.

78.15.0 Firefox ESR

October 5, 2021

Version 78.15.0, first offered to ESR channel users on October 5, 2021

This is the final planned ESR78 release. Eligible users will be automatically updated to the ESR91 release on November 2.

Fixed

Developer

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