Tips for building chrome extensions

Hi! I'm looking to get some feedback on the UX of my chrome extension. It's the first browser extension project I've undertaken! The point of it is to turn bookmarking into a more organized/collaborative experience. With jotted, you can save your tabs into shareable/collaborative mind maps!
https://chrome.google.com/webstore/detail/jotted/bhkpkgkamphddkkcibjakioeajhiadpo