Examine source code of Aranca Knowledge Exchange

{
  "applications": {
    "gecko": {
      "id": "km@aranca.com",
      "strict_min_version": "42.0",
      "strict_max_version": "56.0"
    }
  },
  "manifest_version": 2,
  "name": "Contribute to Arkex",
  "version": "4resigned1",
  "description": "Contribute to Arkex",
  "icons": {
    "48": "icons/arkex48.png",
    "96": "icons/arkex96.png"
  },
  "permissions": [
    "bookmarks",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/arkex38.png",
    "default_title": "Contribute to Arkex!"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}