Examine source code of 3CX groups and more

{
  "manifest_version": 2,
  "name": "3CX groups and more",
  "version": "1.2.1",
  "description": "Extends the 3CX client with groups and more.",
  "author": "chameleon_ninja@pm.me",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/16.png",
      "32": "icons/32.png",
      "48": "icons/48.png",
      "128": "icons/128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6ca8d2c3-ff53-4d99-92d2-1e23d851d49b}"
    }
  }
}