Both this just randomly popped up when I loaded this thread from my subscription folder.

Pressed back from the first and it took me to the second. Prevents me from going back to f150forum.com.

Also had another one where it take me to an iphone6 site. Press back from there and goes to a tabloid site and can't go back any further.

 

That helps greatly/ Forwarded to Techs.

 

If you are not logged in, it is horrible. Pop up ads, then takes you to some stupid game website.