uBlock Origin and Firefox. I haven't seen an advertisement on my browser in such a long time. It even works on mobile!
And for mobile Mull with uBlock. Mull is a firefox based browser extensively configured to preserve privacy and security. Firefox (mobile or otherwise) has telemetry on by default, which can be switched off, just an fyi. This site ( https://divestos.org/pages/browsers ) gives a good comparison and explanation. And this one ( https://privacytests.org ) gives a decent comparison by testing different metrics.
I am pretty excited for an official mobile Firefox app. I've been using Opera, but am ready to ditch Chromium at this point.
The youtube no adblock finally kicked in for me. Location tracking has been pushed for a while. V3 is not out for a while now.