We don't have ads on TFL.
What you have, though, is a piece of spyware, malware, whatever, that has attached itself to your computer and is driving the pop up ads.
We get questions about this occasionally.
Malwarebytes is a very good piece of software for dealing with this.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.