Examine source code of Memrise Audio Uploader

{
  "manifest_version": 3,
  "name": "Memrise Audio Uploader",
  "author": "cardinalby",
  "description": "Uploads audio for words in your course",
  "version": "1.4.3",
  "browser_specific_settings": {
    "gecko": {
      "id": "{570c3f3b-dcd0-4fc1-bfed-faa0ef2a3409}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "128": "images/mainIcon128.png"
  },
  "background": {
    "scripts": [
      "js/compatibility.js",
      "js/messages.js",
      "js/background/textToSpeech/googleTranslate.js",
      "js/background/background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "js/compatibility.js",
        "js/3rdParty/jquery-3.6.0.min.js",
        "js/content/memriseCourse.js",
        "js/content/memriseCourseWordRow.js",
        "js/messages.js",
        "js/content/uploadManager.js",
        "js/content/textToSpeech/languages.js",
        "js/content/autoUploadBtn.js"
      ],
      "matches": [
        "https://app.memrise.com/course/*/edit/*",
        "https://app.memrise.com/course/*/edit/database/*",
        "https://community-courses.memrise.com/course/*/edit/*",
        "https://community-courses.memrise.com/course/*/edit/database/*"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "js/content/pageInjectedScript.js"
      ],
      "matches": [
        "https://app.memrise.com/*",
        "https://community-courses.memrise.com/*"
      ]
    }
  ],
  "host_permissions": [
    "https://app.memrise.com/*",
    "https://community-courses.memrise.com/*",
    "https://translate.google.com/*"
  ]
}