Examine source code of Link Tracking Tag Remover

{
  "manifest_version": 2,
  "name": "Link Tracking Tag Remover",
  "version": "0.1.0",
  "description": "",
  "homepage_url": "https://github.com/prplecake/link-tracking-tag-remover",
  "applications": {
    "gecko": {
      "id": "link-tracking-tag-remover@prplecake.com",
      "strict_min_version": "57.0"
    }
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "notifications",
    "storage",
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "*://*.twitter.com/*"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": true
  }
}