Firefox Enterprise
Release Notes

Release Notes tell you what's new in Firefox Enterprise. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.

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160.0 Firefox Enterprise Release

Version 160.0, first offered to Release channel users on November 10, 2026

Firefox Enterprise 160 builds on Firefox 160, including its security fixes and web platform improvements. See the Firefox 160 release notes for details.

DisableDeveloperTools can now disable remote automation (WebDriver BiDi and Marionette) without a restart.
Removing the Cookies policy without a restart now fully clears its site lists.
Content-process crash pings are authenticated to the admin console.
The crash reporter now uses a distinct Glean app ID.

WebsiteFilter blocks that occur on a redirect now record the BlocklistDomainBrowsed event.
After downgrading to an older version, the login window no longer gets stuck on an "older version" profile warning.

Profile management is disabled, and browser.profiles.enabled is locked off.
The primary password controls are disabled, because profile encryption replaces them.
Nimbus studies and rollouts, Firefox Labs, Normandy, and CFR recommendations are disabled.
"More from Mozilla", the about:welcome onboarding, and address bar interventions are disabled.
datareporting.healthreport.uploadEnabled is locked on, so users can no longer stop security events from being sent.
Users now always get a full warning period to save their work before the browser restarts when the Admin Console sets a restart deadline. Before, a browser that had been open for a long time, or had just woken from sleep, could restart immediately.
about:support now shows more clearly when Content Analysis uses the built-in DLP agent.

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Firefox Enterprise
Release Notes

160.0 Firefox Enterprise Release

New

Fixed

Changed

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