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firefox-addonfirefox-addon-webextensions

How to match Firefox's about page in extension manifest?

I would like to match Firefox's about page like so:

"content_scripts": [
  {
    "matches": ["about:debugging"],
    "js": ["import.js"]
  }
]

The script doesn't run. If I try other matches it works properly on "normal" websites.

Solution

  • If I'm not mistaken in Chrome, Firefox, Microsoft, Opera, and Vivaldi these are the things you aren't allowed to modify because they go against extension policies. Meaning, You can't do this, sorry.

    about-scheme

    chrome-extension-scheme

    chrome-scheme

    edge-extension-scheme

    edge-scheme

    moz-extension-scheme

    ms-browser-extension-scheme

    opera-scheme

    vivaldi-scheme

    wyciwyg-scheme

    (In bold are the ones that will effect Firefox)