Examine source code of TalkFluent

{
  "manifest_version": 2,
  "name": "TalkFluent",
  "version": "1.0",
  "description": "An interactive quiz extension designed to help users master common English phrases and conversational expressions.",
  "icons": {
    "48": "talkfluent_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "TalkFluent"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4f849cd5-0572-400a-8b2d-0511a20bae33}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}