Firefox MCP Server

send_key

Simulate keyboard events in Firefox browser automation. Input specific keys, modifiers, and selectors to control browser interactions programmatically via the MCP server.

Instructions

Send keyboard events

Input Schema

Name	Required	Description	Default
`key`	Yes
`modifiers`	No
`repeat`	No
`selector`	No
`tabId`	No

Input Schema (JSON Schema)

{
  "properties": {
    "key": {
      "type": "string"
    },
    "modifiers": {
      "items": {
        "type": "string"
      },
      "type": "array"
    },
    "repeat": {
      "default": 1,
      "type": "number"
    },
    "selector": {
      "type": "string"
    },
    "tabId": {
      "type": "string"
    }
  },
  "required": [
    "key"
  ],
  "type": "object"
}

This server cannot be installed

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