KeyValueComment
Paste the content of the user.js in the textarea left and click "parse"
Works for the arkenfox user.js, old ghacks user.js, ghacks-user-overrides.js, and so on.
click on an valid pref entry (like this one) to copy it as the user_pref(...); format inline comment included
If an entry is copy-able, its background will turn green on hover
TODO: DARK MODE