OndraM
12
Well, it does, as was reported in this thread. You are not aware of it unless you look into Tools > Extensions during the browser session when the issue appeared.
The issues exists only if AOS and AdBlock try to block the same request at the same time, because only 1 extensions is allowed to do that and it will be the one that requests it first, the other will display the mentioned message. This message is for the developers to know, there is a conflict between the extensions. As far as the user is concerned the request is blocked anyway.