Examine source code of Full Text Tabs Forever

{
  "name": "Full Text Tabs Forever",
  "description": "Search your full browsing history",
  "version": "1.2.2",
  "manifest_version": 3,
  "permissions": [
    "unlimitedStorage",
    "downloads",
    "tabs",
    "activeTab"
  ],
  "icons": {
    "16": "assets/icon_16.png",
    "48": "assets/icon_48.png",
    "128": "assets/icon_128.png"
  },
  "background": {
    "type": "module",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_icon": {
      "16": "assets/icon_16.png",
      "48": "assets/icon_48.png",
      "128": "assets/icon_128.png"
    },
    "default_title": "Open Tab History"
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self';"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-scripts/content-script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{302a4d39-0487-4592-a729-4ddd5098ee6f}",
      "strict_min_version": "109.0"
    }
  }
}