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Firefox 150

Support for Firefox 150 ended on 18/05/2026. There are no more security updates for this branch.

End of support reached

Latest version: 150.0.3, released on 12/05/2026

End of support: 18/05/2026

359 known vulnerabilities open in 150.0.3

Vulnerabilities in Firefox 150

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

And 271 more.

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

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