Examine source code of No mobile reddit

{
  "manifest_version": 2,
  "name": "No mobile reddit",
  "version": "1.2.1resigned1",
  "description": "Prevents the mobile-friendly version of reddit from loading in the browser.",
  "icons": {
    "48": "no-mobile-reddit.svg",
    "96": "no-mobile-reddit.svg"
  },
  "permissions": [
    "*://*.reddit.com/",
    "cookies",
    "storage",
    "webRequest",
    "webRequestBlocking"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  },
  "applications": {
    "gecko": {
      "id": "nomobilereddit@tossj.addons.mozilla.org",
      "strict_min_version": "54.0"
    }
  },
  "short_name": "NMR"
}