Does everyone have problems with firefox?

Question

Browsers

It seems that Google has integrated its own algorithms into the fox, can they be turned off somehow? Some sites work differently for me, for example, coursea cannot load course materials, some sites give a 403 error, don’t update the cache, many sites on livestreet refuse to authorize, even the toaster is sometimes buggy, says they say XSS has been detected, or is this not the case? What then? Different PCs and OS, the same thing, but on different sites. Or is the fox somewhere deep cached somewhere? But where and how to clean?

Answer 1

I don't see anything like that, it works exactly as it should. And what does Google have to do with it? Mozilla is developing it.