Will the FBI come to my house over a mistake?

[906]

I am really freaked out right now!!! Please only serious answers.
So, I feel really guilty, but I was watching random porn videos when I clicked one this tab popped up saying it was childporno and stuff and it wouldn't let me close out of it so I restarted my lap top cuz I freaking out. I would never watch anything like that disturbing.
It's been the third day and nothing has happened. Im worried the FBI will show up or send mail to my parents. Im only 15!!! I was curious.
I uninstalled google chrome (looked it up there) and deleted the history and I think the cookies.
Im not sure if it was legit or a virus.
PLEASE HELP!!!
Im never watching porn again that's for sure.