Can't use Firefox browser any longer with Kaspersky Internet Security

[quoddeus]

Since 2 days I can't use the Firefox Browser any longe. If I'm trying to reach some website I get different warnings, either insecure site or no internet connection. If I use the MS Edge Browser everthing works. I'd rather stay with Mozilla Firefox. So how can this problem be solved?

[Schulte]

Hello @quoddeus, welcome.

Did you notice that FF issued a warning (e.g. phishing site) once while surfing days ago and from then on the problem appeared?

Or did it possibly occur after an FF update?

PS: if you like, we can also continue in German. Otherwise I will move your topic to the English section.