Random Popup scam

While i was on my computer, i added a chrome extension and it was a bass booster. It was working fine until This popped up. https://cdn.discordapp.com/attachments/536216719279128597/578012991769804810/unknown.png (Low Quality) But it wouldn’t alt+f4 close so i had to do something else. Apparently I had pornographic image downloaded and it was a virus so i had to call that number (1-855-560-3696) I knew I didn’t get a virus but i called it anyway. They talked about logging on to my computer and can delete the virus but it will cost money. Then i said something stupid like, “There is a problem, what if i don’t have a keyboard?” I said that while typing REAL loud and he hung up. I have no clue if the phone number still works. but give it a try!

Good day to you whom ever comes across this.