Examine source code of Cyrillo

{
  "manifest_version": 2,
  "name": "Cyrillo",
  "version": "1.1resigned1",
  "description": "Convert latin letters to cyrillic",
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_action": {
    "default_icon": "icons/icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "/bower_components/jquery-3.2.1.min/index.js"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "tabs",
    "webRequest"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6a3d933b-a176-4f58-820d-d8c7b4191cae}"
    }
  }
}