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manifest.json

{
  "manifest_version": 3,
  "version": "118.0.9",
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "96": "images/icon96.png",
    "128": "images/icon128.png"
  },
  "permissions": [
    "storage"
  ],
  "background": {
    "scripts": [
      "background/background.mjs"
    ],
    "type": "module"
  },
  "options_ui": {
    "page": "popup/popup.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7b1bf0b6-a1b9-42b0-b75d-252036438bdc}",
      "strict_min_version": "113.0"
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  },
  "action": {
    "default_icon": {
      "16": "images/icon16.png",
      "24": "images/icon24.png",
      "32": "images/icon32.png"
    },
    "default_title": "__MSG_appName__"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/content_script.js"
      ],
      "matches": [
        "*://*.youtube.com/*",
        "*://*.youtube-nocookie.com/*"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "style/*",
        "scripts/*"
      ],
      "matches": [
        "<all_urls>"
      ],
      "extension_ids": []
    }
  ]
}