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firefox-devtools-mcp

list_network_requests

Monitor and analyze browser network activity by retrieving recent HTTP requests across all tabs with filtering options for URL, method, status code, and resource type.

Instructions

List recent network requests across all tabs. Network capture is always on. Use filters (limit, sinceMs, urlContains, method, status, resourceType) and detail (summary|min|full) to control output. Each entry includes a stable id for use with get_network_request.

Input Schema

NameRequiredDescriptionDefault
detailNoOutput detail level: summary (default), min (compact JSON), full (includes headers)
formatNoOutput format: text (default, human-readable) or json (structured data)
isXHRNoFilter by XHR/fetch requests only
limitNoMaximum number of requests to return (default: 50)
methodNoFilter by HTTP method (GET, POST, etc., case-insensitive)
resourceTypeNoFilter by resource type (case-insensitive)
sinceMsNoReturn only requests newer than N milliseconds ago
sortByNoSort requests by field (default: timestamp descending)
statusNoFilter by exact HTTP status code
statusMaxNoFilter by maximum HTTP status code
statusMinNoFilter by minimum HTTP status code
urlContainsNoFilter requests by URL substring (case-insensitive)

Input Schema (JSON Schema)

{ "properties": { "detail": { "description": "Output detail level: summary (default), min (compact JSON), full (includes headers)", "enum": [ "summary", "min", "full" ], "type": "string" }, "format": { "description": "Output format: text (default, human-readable) or json (structured data)", "enum": [ "text", "json" ], "type": "string" }, "isXHR": { "description": "Filter by XHR/fetch requests only", "type": "boolean" }, "limit": { "description": "Maximum number of requests to return (default: 50)", "type": "number" }, "method": { "description": "Filter by HTTP method (GET, POST, etc., case-insensitive)", "type": "string" }, "resourceType": { "description": "Filter by resource type (case-insensitive)", "type": "string" }, "sinceMs": { "description": "Return only requests newer than N milliseconds ago", "type": "number" }, "sortBy": { "description": "Sort requests by field (default: timestamp descending)", "enum": [ "timestamp", "duration", "status" ], "type": "string" }, "status": { "description": "Filter by exact HTTP status code", "type": "number" }, "statusMax": { "description": "Filter by maximum HTTP status code", "type": "number" }, "statusMin": { "description": "Filter by minimum HTTP status code", "type": "number" }, "urlContains": { "description": "Filter requests by URL substring (case-insensitive)", "type": "string" } }, "type": "object" }

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