Examine source code of Tracker Blocker

{
  "manifest_version": 3,
  "name": "Tracker Blocker by Opt Out Rights",
  "description": "Blocks and explains likely third-party trackers.",
  "version": "0.1.0",
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "96": "icon-96.png",
    "128": "icon-128.png"
  },
  "developer": {
    "name": "Opt Out Rights"
  },
  "homepage_url": "https://github.com/OptOutRights/tracker-blocker",
  "permissions": [
    "storage",
    "webNavigation",
    "webRequest",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_title": "Tracker Blocker",
    "default_icon": {
      "16": "icon-16.png",
      "32": "icon-32.png"
    },
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "trackerblocker@optoutrights.org",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "open_in_tab": false,
    "page": "options.html"
  }
}