Examine source code of SoundBridge

{
  "manifest_version": 3,
  "name": "SoundBridge",
  "short_name": "SoundBridge",
  "description": "Send audio from supported videos directly to your personal server music library.",
  "version": "1.0.3",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs"
  ],
  "host_permissions": [
    "https://*/",
    "http://*/"
  ],
  "action": {
    "default_icon": {
      "16": "icon16.png",
      "32": "icon32.png",
      "48": "icon48.png",
      "128": "icon128.png"
    },
    "default_title": "Download to personal library",
    "default_popup": "popup.html"
  },
  "options_page": "options.html",
  "browser_specific_settings": {
    "gecko": {
      "id": "soundbridge@antonioviola.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}