Browser extension to replace bookmarks?

Anyone know of any browser extensions that allow one to ‘automagically’ ingest a page (e.g., ARXIV pdf) into a personal RAG? Seems like a natural. My bookmarks have grown totally useless, so many I can’t ever find anything in them, even if I remember I might have bookmarked it.

Not sure that browser sandboxing might not make this very difficult or impossible.

Alternately, maybe just a GPTAssistant you paste the URL into?