Examine source code of Research Thread Tracker

{
  "manifest_version": 2,
  "name": "Research Thread Tracker",
  "version": "1.0",
  "description": "Track and save research topics and related web pages.",
  "permissions": [
    "activeTab",
    "storage",
    "tabs"
  ],
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "48": "icons/4848.png",
      "96": "icons/9696.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8c0fb764-1e17-4643-84ff-d2ff2ef17429}"
    }
  }
}