This extension is very nice and useful! I can see another useful feature would be letting you to locate the object in the json file when you click a row of a table in the viewer. That way, the viewer ...

Format/Collapse: Toggle between compact and formatted views with syntax highlighting Copy: Copies the JSON to your clipboard (formatted or unformatted based on current view) Contributions are welcome!

今回、一番苦労したのが、insertAdjacentHTML の箇所。 謝辞 野田先生 ( @sam_oda ) ありがとうございます！ 「JS入門 5. JSONデータのビジュアル化」がとても参考になりました！

Now, most folks who want to view and edit JSON data are likely to be programmers rather than regular folks. And that is why reading and editing such data is essential where Firefox is concerned ...