Examine source code of Artivain Dashboard

{
  "manifest_version": 2,
  "name": "Artivain Dashboard",
  "version": "2.0",
  "description": "A simple new tab extension for Firefox",
  "icons": {
    "48": "icon.svg"
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "chrome_settings_overrides": {
    "homepage": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{db379d11-eecd-4fbe-a812-b4d00fc67561}"
    }
  }
}