Examine source code of Universal Chat Companion

{
  "icons": {
    "32": "icon-32.png",
    "128": "icon.png"
  },
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "16.7",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "sidebar_action": {
    "default_title": "__MSG_extensionName__",
    "default_panel": "popup.html",
    "default_icon": "icon.png",
    "browser_style": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4b19ef43-3086-2597-be32-bbb5cc733b7e}"
    }
  }
}