Ads by Google - Removal

I successfully removed the ads that appeared while viewing YouTube videos (what I, for lack of a better description, call "external spam" but I still have "internal spam" called "Ads by Google" that appear randomly AFTER I begin viewing a YT Video. How may I cripple them? :cry

TIA

 

Somehow lost clipping tool.

I'm mainly concerned about the ads the load at the start of YT videos. The ones that countdown before I can continue then turn to a SKIP AD button.

They appear to be ads by Goggle. When I record the audio from a clip, the ad gab becomes a part of the recording.

 

Kestrel13!, strange, I think I accomplished this before on a different computer. But thanks anyway.:-o

 

Kestrel13!, you're right again, it's a browser setting in Firefox to block popups. There are three levels of protection. I needed "Max" to block Google Ads. I'm a happy camper. Thanks!:-D