Stylish was an awesome browser extension that enabled you to override CSS on websites. Turns out that it logs every single URL you visit! https://robertheaton.com/2018/07/02/stylish-browser-extension-steals-your-internet-history/
For Google searches, it also records the search term and search results. Yikes.
@wilfredh Yeah, absolute garbage, and further evidence that TOS (especially when they can be unilaterally changed with little or no notice) do nothing to truly inform people. Also, app stores (or extension stores in this case) seem to be of little help here... :/