---
name: hydrogen-webview-windows
description: >-
  Windows companion to hydrogen-webview: hbw, Hydrogen's standalone built-in
  browser window (POST /hbw/open). Use when asked for a hydrogen browser window
  or a standalone browser window.
---

# hydrogen-webview-windows — Windows companion to hydrogen-webview

Read **hydrogen-webview** (platform-generic) first. The parts below exist only in the Windows Hydrogen;
the macOS app does not have them.

## hbw — Hydrogen's standalone browser window (the fourth surface)

Under Hydrogen there is one more surface: **hbw**, Hydrogen's standalone built-in
Tauri browser window (picker label "Hydrogen Browser Window", destination id
`webview-window`, window label `hbw-*`). It is a separate OS window Hydrogen manages
directly — bigger than a pane tab, still not a real browser. Open one first-class via
`POST /hbw/open {"url": ...}` on Hydrogen's control API (0.1.113+), or pick "Hydrogen Browser
Window" in the Browser Picker. The surface shortlist: **wv** (this skill's webview
panel; Hydrogen's pane tab inside Hydrogen), **extwv** (the real-browser pane tab for embed-blocked
sites, above), **pup**, **nb** (the user's native browser via abe), **hbw**. VS
Code's Simple Browser is NEVER one of them.