Examine source code of Tabber - Tab Organizer

{
  "manifest_version": 3,
  "name": "__MSG_extension_name__",
  "description": "__MSG_extension_description__",
  "version": "1.11.0",
  "author": "Neulen",
  "homepage_url": "https://tabber.top",
  "default_locale": "en",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_icon": "icons/icon19.png",
    "default_title": "__MSG_extension_default_title__",
    "default_area": "navbar"
  },
  "omnibox": {
    "keyword": "t"
  },
  "permissions": [
    "storage",
    "tabs",
    "tabGroups",
    "activeTab",
    "contextMenus",
    "notifications",
    "scripting"
  ],
  "optional_permissions": [
    "<all_urls>",
    "webRequest"
  ],
  "background": {
    "type": "module",
    "scripts": [
      "service-worker-loader.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "assets/moz-inject.ts-BPza7mSG.js"
      ],
      "matches": [
        "http://localhost/*",
        "https://tabber.top/*"
      ],
      "run_at": "document_end"
    }
  ],
  "commands": {
    "preserve-tab": {
      "description": "__MSG_preserve_tab__"
    },
    "preserve-tab-group": {
      "description": "__MSG_preserve_tab_group__"
    },
    "preserve-all": {
      "description": "__MSG_preserve_all_tabs__"
    },
    "sync-to-cloud": {
      "description": "__MSG_sync_to_cloud__"
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "http://localhost/*",
        "https://tabber.top/*"
      ],
      "resources": [
        "assets/moz-inject.ts-BPza7mSG.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4892ed3f-d10f-4f19-bceb-3dae2dbe138f}"
    }
  }
}