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.

Firefox ESR

July 9, 2020

Version 78.0.2esr, first offered to ESR channel users on July 9, 2020


  • Security fix

  • Fixed an accessibility regression in reader mode (bug 1650922)

  • Made the address bar more resilient to data corruption in the user profile (bug 1649981)

  • Fixed a regression opening certain external applications (bug 1650162)

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