Examine source code of SmartOLT Custom Linker

{
  "manifest_version": 2,
  "name": "SmartOLT Custom Linker",
  "version": "1",
  "description": "Adds a configurable custom link to SmartOLT ONT pages based on the device serial number.",
  "permissions": [
    "storage"
  ],
  "icons": {
    "48": "icons/link-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.smartolt.com/onu/view/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "smartolt-linker@smartolt.com"
    }
  }
}