A security issue has been found in Firefox before version 95. WebExtensions with the correct permissions were able to create and install ServiceWorkers for third-party websites that would not have been uninstalled with the extension.
A security issue has been found in Firefox before version 95. WebExtensions with the correct permissions were able to create and install ServiceWorkers for third-party websites that would not have been uninstalled with the extension.
https://www.mozilla.org/security/advisories/mfsa2021-52/ https://bugzilla.mozilla.org/show_bug.cgi?id=1636629
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