Cybersecurity

Mozilla replaces GPG key for Firefox and Thunderbird after leak

Mozilla has generated a new GPG key for Firefox and Thunderbird following the leak of the old key.

11 August 2026Tagblick Newsdesk

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Archive photo: Mozilla replaces GPG key for Firefox and Thunderbird after leak — Archive photoPhoto: beltzner · Flickr · BY-SA

Mozilla has created a new GPG key for signing Firefox and Thunderbird files. This decision came after the old GPG key was leaked unencrypted in a private GitHub repository.

According to reports, Mozilla has found no evidence of misuse of the leaked key. The new key has now been implemented to protect the software packages.

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