ajayyy/SponsorBlock ? reverse-engineered prompt

Build me a browser extension for Chrome and Firefox that automatically skips sponsored segments in YouTube videos. The main idea is that it should be crowdsourced. When a user is watching a video, they should be able to click a button to mark the start and end times of a sponsor's ad read. This data gets submitted to a central database.

Then, when another user watches that same video, the extension will automatically skip over that submitted sponsored segment. It should also be able to skip other things people don't want to watch, like intros, outros, and the part where creators ask you to subscribe. Users should have a settings menu where they can choose which of these categories to skip. Use TypeScript for the project.