MCP Libraries
firefox-devtools-mcpTools Reference

set_viewport_size

Change viewport dimensions

set_viewport_size

Set the browser viewport size.

Parameters

ParameterTypeRequiredDescription
widthnumberYesViewport width in pixels
heightnumberYesViewport height in pixels

Example

{
  "tool": "set_viewport_size",
  "arguments": {
    "width": 1920,
    "height": 1080
  }
}

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