On Tue, May 21, 2019 at 12:59 PM Adrian R via dev-security-policy <
[email protected]> wrote:

> Hello
>
> Today, as part of an "upgrade" to version 19.5 Avast Antivirus has
> forcefully enabled the entire Microsoft PKI for all Firefox users that also
> happen to be users of Avast [Free] Antivirus.
>
> They now forcefully set this Mozilla enterprise policy for all users of
> Avast:
>
> HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox\Certificates
> "ImportEnterpriseRoots"=dword:00000001
>
> And this causes Mozilla Firefox to trust all the root certificates in the
> Windows store...


That is not my understanding of how this setting works: it only imports
roots that have been added to the Windows root store, e.g. by a program
such as Avast, or an administrator. It does not import roots Microsoft
ships with Windows.


> but with a bug: Firefox ignores the local revocation info for root
> certificates and thus considers revoked root certificates as being valid.
>
>
> Related Mozilla bugzilla bug id: 1553233
>
> *sigh*
>
> ~~~~
> Adrian R.
>
>
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