NotebookLM's answers are read-only. You can't edit them in place, which is annoying when the AI gives you a great summary with one wrong sentence. So I built a small thing: pull the answer into my extension, edit it freely, export it as Markdown.
Source: [Dev.to](https://dev.to/shaojie/how-one-lazy-line-turned-a-simple-feature-into-a-recursive-dom-walker-454m)