DDG has app tracking protection, which runs whether the browser is open or not.

Thanks for the RethinkDNS referral, albeit a bit of a learning curve. I had been using DDG protection for a while (out of laziness), but started to wonder if it cut the mustard.

Good to know, thanks for sharingn Glad to hear you’ve found a solution.

I have noticed a similar behavior on one of my machines recently. Usually it’s a video (or recently played Spotify song) that gets ‘stuck’ there. Have you tried opening a new instance of Firefox, playing a video, then lock the computer (win + L) to see if it- at the very least- changes/updates to the newly opened video?