Examine source code of Jut.Su Plus

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "version": "2.0",
  "description": "__MSG_extDesc__",
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "58.0",
      "id": "{43fafcf7-dd74-44e3-b927-43c28ce65d78}"
    }
  },
  "default_locale": "en",
  "icons": {
    "32": "icons/32.png",
    "48": "icons/48.png",
    "96": "icons/96.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "storage",
    "*://*.jut.su/*"
  ],
  "browser_action": {
    "default_icon": "icons/48.png",
    "default_title": "Jut.Su Plus",
    "default_popup": "popup/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.jut.su/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}