Our servers are protected against the PHP security vulnerability disclosed in October. The update was installed on 21 October 2026. More about php2shell Patch Log in

Firefox 154

Support for Firefox 154 ended on 01/09/2026. There are no more security updates for this branch.

End of support reached

Latest version: 154.0.1, released on 25/08/2026

End of support: 01/09/2026

174 known vulnerabilities open in 154.0.1

Vulnerabilities in Firefox 154

174 vulnerabilities from the NVD affect at least one version of this branch. Last checked on 03/11/2026.

And 74 more.

66 vulnerabilities of Firefox have no version information in the NVD and are not assigned to any branch.

Get notified

Add Firefox with your version and Erseni Patch writes to you about new versions, vulnerabilities in exactly your version and the end of support.

Already have an account? Log in and add Firefox 154

All branches of Firefox

Vulnerabilities Software A-Z Imprint Privacy Accessibility English Deutsch © 2026 Erseni