Examine source code of Jitsi Chat Exporter

{
  "manifest_version": 2,
  "name": "Jitsi Chat Exporter",
  "version": "0.1.2",
  "icons": {
    "48": "./assets/icon/icon-48px.png"
  },
  "browser_action": {
    "default_icon": {
      "48": "./assets/icon/icon-48px.png"
    },
    "default_title": "Jitsi Chat Exporter"
  },
  "background": {
    "scripts": [
      "./background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./index.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{95752e5f-5933-4d79-96a5-a2f7788ea2ec}"
    }
  }
}