Examine source code of Browser Routr

{
  "name": "Browser Routr",
  "version": "0.73",
  "description": "Route links and requests for some sites to a different browser",
  "homepage_url": "https://PaulRRogers.com/product/browser-routr/",
  "background": {
    "page": "background.html",
    "persistent": true
  },
  "permissions": [
    "nativeMessaging",
    "storage",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "tabs",
    "<all_urls>"
  ],
  "manifest_version": 2,
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "logo-16.png",
      "32": "logo-32.png",
      "48": "logo-48.png",
      "128": "logo-128.png"
    },
    "default_popup": "popup.html",
    "default_title": "Browser Routr - Route links and requests for some sites to a different browser"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d968a55e-1e95-4349-bec3-82c01aee7030}",
      "strict_min_version": "68.0"
    }
  },
  "icons": {
    "16": "logo-16.png",
    "32": "logo-32.png",
    "48": "logo-48.png",
    "128": "logo-128.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  }
}