Examine source code of phpKF

{
  "name": "phpKF",
  "short_name": "phpKF",
  "description": "phpKF Forum, Portal ve CMS için otomatik giriş ve bildirim alma özellikleri sağlar.",
  "author": "phpKF",
  "version": "0.9.7",
  "homepage_url": "https://www.phpKF.com",
  "manifest_version": 2,
  "icons": {
    "48": "icons/icon.png",
    "110": "icons/icon-110.png"
  },
  "applications": {
    "gecko": {
      "id": "phpkf-addons@phpkf.com"
    }
  },
  "options_ui": {
    "browser_style": true,
    "open_in_tab": false,
    "page": "setting/index.html"
  },
  "background": {
    "page": "index.html"
  },
  "browser_action": {
    "browser_style": true,
    "default_title": "phpKF",
    "default_icon": "icons/icon-passive.png",
    "default_popup": "popup/index.html"
  },
  "permissions": [
    "cookies",
    "storage",
    "alarms",
    "notifications",
    "webRequest",
    "*://*/*"
  ]
}