Maybe. Or got tricked into doing so.

Edit: early 2000s when browser plugins were able to do practically anything, we would often have people come in with so many “extensions” installed that you could barely see the page you were looking at. Yes, they likely provided some kind of affirmative action to install those, but the user’s intent wasn’t ever to have so much shit installed in their browser that they couldn’t use it. Further evidenced by the fact they were in my store spending $100/hr to have them removed.