debug

name	debug
description	Show console errors and failed network requests
argument-hint	["console|network|all"]
disable-model-invocation	true

/firefox-devtools-mcp:debug

Displays debugging information from the current page.

Usage

/firefox-devtools-mcp:debug              # Show all (console errors + failed requests)
/firefox-devtools-mcp:debug console      # Console messages only
/firefox-devtools-mcp:debug network      # Network requests only

Examples

/firefox-devtools-mcp:debug
/firefox-devtools-mcp:debug console
/firefox-devtools-mcp:debug network

What Happens

• console: Calls list_console_messages with level="error"
• network: Calls list_network_requests with statusMin=400
• all (default): Shows both console errors and failed network requests

Requires Firefox to already be running and on the page you want to debug. If Firefox is not running or is on about:blank, call navigate_page first.