Embedded Browser pane crashes/hangs the app on navigate to certain external pages

Summary
The in-app Browser pane (mcp__Claude_Browser__navigate / preview browser) has crashed the whole Claude Code window multiple times. In every case I've been able to trace, the crash happens at or immediately after a navigate call to an external page — the app becomes unresponsive, then closes/restarts.

Environment

• OS: Windows 11 Pro 10.0.26200
• Shell: PowerShell 7
• Client: Claude Code desktop app

Observed pattern

1. Assistant calls navigate to load an external URL in the Browser pane.
2. App hangs (no further tool output).
3. Window crashes; on reopening, prior session shows a silent "Continue from where you left off" auto-nudge with no response — confirming the hang happened mid-navigate.

Reproduction examples

• Navigating to haveibeenpwned.com to check an email address (page has a Cloudflare challenge) — crashed twice in the same session on retry.
• Navigating to an aviation footage site with autoplay video while researching social media assets — crashed once.

Suspected cause
Heavy/JS-intensive pages (anti-bot challenge scripts, autoplay video) appear to hang or crash the embedded Chromium renderer, taking the host app process down with it rather than failing gracefully or timing out.

Expected behavior
A slow/unresponsive page load in the Browser pane should time out or error within the tool, not crash the entire application window.

Impact
Loses in-progress session work each time; happened ~3-4 times across separate sessions.