Examine source code of ULR Tracker Redactor

{
  "manifest_version": 2,
  "name": "URL Tracker Redactor",
  "author": "Glovebox Team",
  "description": "Remove from all URLs tagvalues used for marketing and analytics purposes. Made by Glovebox",
  "homepage_url": "https://github.com/lars0281/URL-Tracker-Redactor_for_Firefox",
  "version": "1.0.1",
  "icons": {
    "48": "icons/UTR-48.png",
    "96": "icons/UTR-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "urltrackerredactor@glovebox.com",
      "strict_min_version": "63.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "activeTab",
    "tabs",
    "storage",
    "unlimitedStorage",
    "<all_urls>"
  ]
}