Examine source code of WikimediaDebug

{
  "manifest_version": 2,
  "name": "WikimediaDebug",
  "description": "Control the X-Wikimedia-Debug header on HTTP requests.",
  "author": "Ori Livneh",
  "version": "3.2.0",
  "icons": {
    "512": "images/logo.png"
  },
  "browser_action": {
    "default_icon": "images/icon-lightmode-128.png",
    "default_title": "WikimediaDebug",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "service-worker.js"
    ],
    "persistent": false
  },
  "permissions": [
    "alarms",
    "storage",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "*://*.mediawiki.org/*",
    "*://*.wikidata.org/*",
    "*://*.wikifunctions.org/*",
    "*://*.wikibooks.org/*",
    "*://*.wikimedia.org/*",
    "*://*.wikinews.org/*",
    "*://*.wikipedia.org/*",
    "*://*.wikiquote.org/*",
    "*://*.wikisource.org/*",
    "*://*.wikiversity.org/*",
    "*://*.wikivoyage.org/*",
    "*://*.wiktionary.org/*",
    "*://*.beta.wmcloud.org/*",
    "*://*.beta.wmflabs.org/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "wikimediadebugaa@wikimedia.org",
      "strict_min_version": "115.0"
    }
  }
}