antler
We also share aggregated, non-personal data and related usage information, which does not contain any personal information which can identify you or any other individual user, with third parties, including content providers, website operators, advertisers and publishers.
https://getpocket.com/privacy#sharing
From the pocket privacy policy
Greyjay Newpipe Freetube
A custom user.js might be a good base to work off of. For example https://github.com/yokoffing/Betterfox
But jumping ship might be your best bet. Forks like Librewolf are good or otherwise a privacy respecting Chromium browser can work well too.
First off there’s no such thing as 100% clean or renewable power. Solar panels are metals (mined with petroleum powered equipment and probably refined in China using coal) plus petroleum products (plastics etc). They’re shipped around on trucks and boats, and if they’re burnt to remove the petrolium products before extracting the metals when they’re ‘recyced’ then it’s literally burning fossil fuels.
Not only that but they’re buying RECs. The power they’re consuming could very well be 100% generated by coal, but they gave a few bucks to somebody who had solar or wind.