How can opera download 6 gigs?

Question

Opera

I have a mobile Internet, during the night the opera downloaded more than 6 gigs, Comodo firewall and NetWorx did not help find what was downloaded, the opera just remained open at night, please tell me what kind of glitch? And what (programmatically) can be viewed where and what was swinging?

Answer 1

Most likely, they left some site open with auto-refreshing the page (well, or just some site glitched and it started refreshing the page every second with ajax - it happens with VK, for example).

Answer 2

Maybe there was a plug-in thread to bypass the blocking of Roskomnadzor and it drove other people's traffic through itself?

Answer 3

Why are you sure it's an opera? Maybe a Windows update or something.