Examine source code of Librezam

{
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "5.9",
  "manifest_version": 3,
  "default_locale": "en",
  "icons": {
    "128": "images/icon.png"
  },
  "action": {
    "default_title": "__MSG_extensionName__",
    "default_popup": "/popup/guess.html"
  },
  "content_scripts": [
    {
      "js": [
        "content/appendWorkaround.js",
        "content/content.js",
        "content/autoGuess.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true
    }
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "type": "module"
  },
  "permissions": [
    "webNavigation",
    "storage",
    "notifications",
    "unlimitedStorage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "/content/*.js",
        "/common/*.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "commands": {
    "tab-recognize": {
      "suggested_key": {
        "default": "Ctrl+E"
      },
      "description": "__MSG_recognizeFromTabAudio__"
    },
    "mic-recognize": {
      "suggested_key": {
        "default": "Ctrl+Alt+E"
      },
      "description": "__MSG_recognizeFromMicrophoneCommand__"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "Librezam@Librezam",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ],
        "optional": [
          "authenticationInfo"
        ]
      }
    }
  }
}