Examine source code of Thielblock Plus

{
  "manifest_version": 2,
  "name": "Thielblock Plus",
  "short_name": "TBP",
  "description": "This extension blocks certain websites associated with Trump major donor Peter Thiel.",
  "version": "1.2resigned1",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://news.ycombinator.com/",
    "*://thielfellowship.org/",
    "*://www.palantir.com/"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b4c79ba9-1d04-4280-b10d-788d53231cd2}"
    }
  }
}