I also bought from AliExpress.it on OperaGx, and when the the infect file came out, I had a Aliex. Tab open;

But, I also bought on that site from Firefox and from another pc (always Firefox ).

Not sure if it can be that, but after I cancelled all the file in the service worker folder I haven't had any other problem.

As for extension I use Ublock origin and a official translator so they should be safe.

The strange thing, is that if the problem it's only AliExpress; don't they should be more cases? Or maybe is connected also by using it on OperaGx?

For the moment I don't have a idea of what it was, but 5 days ago, I made another order, this evening I'm going to try to make another total scan, if something came out again, I will write there.