Examine source code of MuteTwitterSpaces

{
  "manifest_version": 2,
  "name": "MuteTwitterSpaces",
  "version": "1.53",
  "description": "Enhance Your Twitter Spaces Experience - Mute trolls or speakers with bad mics.",
  "browser_specific_settings": {
    "gecko": {
      "id": "kyle510cali@gmail.com",
      "strict_min_version": "57.0"
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "webRequest",
    "*://twitter.com/*",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://twitter.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon-128.png"
  }
}