Examine source code of BotRix

{
  "manifest_version": 2,
  "name": "BotRix",
  "description": "Allows you to receive alerts from Kick followers.",
  "version": "1.4",
  "content_scripts": [
    {
      "run_at": "document_start",
      "all_frames": true,
      "js": [
        "kick-features.js"
      ],
      "matches": [
        "https://kick.com/*",
        "https://dashboard.kick.com/*"
      ]
    }
  ],
  "permissions": [
    "webRequest",
    "https://botrix.live/*"
  ],
  "icons": {
    "16": "assets/icon16.png",
    "48": "assets/icon48.png",
    "128": "assets/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8b35ccf8-9f66-4295-bac5-38b1c23f39fe}"
    }
  }
}