manifest-ff.json

{
  "manifest_version": 3,
  "name": "ninja-mode",
  "description": "Browser extension for enabling dark mode on any website.",
  "version": "1.0",
  "background": {
    "scripts": ["src/background.js"]
  },
  "content_scripts": [
    {
      "js": ["src/content.js"],
      "matches": ["<all_urls>"],
      "match_about_blank": true,
      "run_at": "document_start"
    }
  ],
  "permissions": ["tabs", "scripting"],
  "host_permissions": ["<all_urls>"],
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Toggle \"Ninja Mode\""
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ninja-mode@borisdiakur.de"
    }
  }
}