I got a popup tab with a very dated UI about an urgent Firefox update involving a flash player. It told me to click allow installation or something like that I don't remember exactly. Once I clicked the allow button there was a popup and a green arrow pointing to the popup in the top right. I clicked it and it said to click "add" next. I realized this is probably a scam and did not add it. I'm assuming that add was referring to something about extensions or plugins but I checked those and there wasn't anything I already knew I had. I did a virus scan and it got nothing. The popup appeared alongside a Minecraft Skindex download. I did some research and learned it is malware and comes in many different forms. The add popup referenced something called auto ads off. Did I stop the malware by not clicking add and if not how do I remove it.