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Re:Update Regarding Add-Ons in Firefox by firethief on Saturday May 04, 2019 @01:18PM (#19827801)
The main trust check is at installation time, but it's possible for problems to be discovered later, and Mozilla needs to be able to do something about it. Certificate non-renewal is the only robust avenue of revocation.
Re:Update Regarding Add-Ons in Firefox by megous on Saturday May 04, 2019 @01:30PM (#19827876)
There's already an extension banlist.

See profile/blocklist-addons.json

Not sure how not renewing a certificate and letting everything get disabled is useful. It's only useful if cert key leaks.

Re:Update Regarding Add-Ons in Firefox by the8472 on Saturday May 04, 2019 @01:32PM (#19827885)
> Mozilla needs to be able to do something about it.

No, they do not need to. They decided that they want to. Remember that there was a time before certificate signing.

And now the decision to be able protect those who install crapware is also harming those who never had those issues.

Re:Update Regarding Add-Ons in Firefox by pbhjpbhj on Saturday May 04, 2019 @01:42PM (#19827949)
They should absolutely have asked extra permission to implement a system where they could choose to alter my browser install, in an unexpected way, at their behest without seeking further authorisation, not even a modal???

It's exceedingly poor ethics.