Examine source code of Tab

{
  "commands": {
    "display-onetab": {
      "suggested_key": {
        "default": "Alt+Shift+1"
      },
      "description": "__MSG_displayOneTab__"
    },
    "send-current-tab-to-onetab": {
      "description": "__MSG_sendCurrentTabToOneTab__"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "113.0",
      "id": "{948c55c8-acf3-4adc-ac2f-1beaf6a12b4a}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "119.0"
    }
  },
  "description": "__MSG_manifestDescription__",
  "default_locale": "en",
  "icons": {
    "16": "images/extension-icon16.png",
    "32": "images/extension-icon32.png",
    "48": "images/extension-icon48.png",
    "64": "images/extension-icon64.png",
    "128": "images/extension-icon128.png"
  },
  "manifest_version": 3,
  "host_permissions": [
    "*://*/*"
  ],
  "name": "Tab",
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "version": "2.5",
  "background": {
    "type": "module",
    "scripts": [
      "ext-onetab-concatenated-sources-background.js"
    ]
  },
  "action": {
    "default_icon": {
      "19": "images/icon19.png",
      "38": "images/icon38.png"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; img-src 'self' data: https://t2.gstatic.com;"
  },
  "permissions": [
    "unlimitedStorage",
    "storage",
    "tabs",
    "contextMenus",
    "declarativeNetRequest"
  ]
}