With a firefox-certificate running out of time in march 2025, and firefox disabling all addons on older versions of the browser (here: version 110.0 64bit linux), is there a way to only replace the by this time invalid certificate (signingca1.addons.mozilla.org is what i have found so far) only and avoid an update ?
This is a technical question as an update could solve the problem. But an update may not be advisable under all circumstances (old hardware, OS, addons no longer available etc.).
In the firefox browser with version 110.0 in the settings -> security -> certificates -> view certificates dialog are no mozilla based certificates shown.
So the question is, how to find out where the certificate file is, get a valid, new one, and replace the old one with it. This should do the trick, but how ?
Edit: We have information that the certificate to sign the addons is compiled into the binary, so to replace it, a compile from source with an updated certificate is the way to go.