Examine source code of ClipClear2

{
  "manifest_version": 2,
  "name": "ClipClear2",
  "version": "27.0.9",
  "author": "__MSG_extensionAuthor__",
  "description": "__MSG_extensionDescription__",
  "icons": {
    "48": "icons/icon.png"
  },
  "permissions": [
    "cookies",
    "clipboardWrite",
    "notifications",
    "storage",
    "<all_urls>",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js",
      "options.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/YesClipClearBtn-24.png",
    "default_title": "ClipClear"
  },
  "commands": {
    "remove-all-cookies": {
      "suggested_key": {
        "default": "Alt+Shift+Y"
      },
      "description": "Remove al cookies"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html"
  },
  "default_locale": "en",
  "applications": {
    "gecko": {
      "id": "{17d2ba55-c87a-4ce5-ae15-c7a271c3ccb1}",
      "strict_min_version": "79.0"
    }
  }
}