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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "version": "1.3",
  "default_locale": "en",
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "permissions": [
    "downloads",
    "contextMenus",
    "offscreen",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "service_worker": "background.js",
    "type": "module"
  },
  "action": {},
  "icons": {
    "16": "/images/16x16.png",
    "48": "/images/48x48.png",
    "64": "/images/64x64.png",
    "96": "/images/96x96-128x128.png",
    "128": "/images/128x128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "images/48x48.png"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "inject/inject.js"
      ],
      "css": [
        "inject/inject.css"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ]
}