Firefox - connection is untrusted (dsl, modem, icon, installed)

[robertpasa]

I was just doing ordinary Google searches when Firefox suddenly said the connection was untrusted (see link below). I believe there was just something wrong with one Google page, but I just now got a new router and faster DSL service. I never saw this Firefox untrusted message before.

https://support.mozilla.org/en-US/kb...ate-is-unknown

Also, Windows gave me the yellow triangle on the networking icon. I thought only Windows and not Firefox could do that.

I think the fact I just got a new DSL service and saw this message the first time is just a coincidence, what do you think?

[robertpasa]

Actually, a new router will have a new firewall, so that might have to do with it. My previous DSL modem was super old.
But that page shouldn't have been a problem as it was a search for an old book title.

[Xircal]

It means that the site's digital certificate doesn't match the one in the Mozilla database.

That can be for a variety of reasons such as MiTM attacks where the site has been spoofed. The best thing you can do is to use IE to go to the same site and see if a similar warning appears. If it doesn't, then it could just be a corrupt database file in Firefox. That link you provided explains how to correct it.

It's a good idea to install VTZilla which is owned by Google so that you can scan the site with around 50 odd AV scanners. VTZilla is a free add-on you can download from the Mozilla site: https://addons.mozilla.org/en-US/fir...tzilla/?src=ss

I use it myself. Just right click a link before you load the site and choose "Scan with VirusTotal".

We're on version 36.0.4 now by the way just in case you have an older version installed. Previous versions are vulnerable to this exploit: Mozilla Firefox SVG Processing Flaw Lets Remote Users Bypass Same-Origin Policy and Execute Arbitrary Scripts with Elevated Privileges - SecurityTracker