Here is what I have done to bypass ads and so far it is working. Install ad-block plus then install "Canvas Fingerprint Defender" (both free from the chrome store). I imagine firefox has the same extensions. I was getting the "ad blockers are not allowed on youtube blah blah blah". Then, once I installed the Canvas Fingerprint Defender, it stopped. Another workaround, I own Real Player (there is a free and paid version...both will do this) and that allows me to download videos from youtube and I can play back at my leisure ad free. The free version caps your download speeds while the paid version has no cap. I think it was $20. Worth it to me. Hope this helps. I'll report back if the Canvas Defender starts failing me. I use Freetube on my computer, SmartTube on my Fire Stick and LibreTube on my phone. All of the above block ads for Youtube, plus you don't have to be signed up to Youtube to use. You will have to manually add channels that you like to the apps which will then be updated in your Youtube feeds. Update: My methods I stated above are no longer working to block ads. I did download the "Brave" browser. Problem solved!!! (at least for now).
FREETUBEAPP.IO 
SMARTTUBE.APP 
