Avast alerting on ebay-related sites

[mchain]

@HonzaZ post:7

Typically, when Avast blocks content, it just aborts the connection to the website. As there is no way for the Avast program to decide from which tab the blocked content came, I think it is unlikely that it would display any warning in the tab itself.
Does this happen in other browsers as well?

Agreed. Never have seen such before.