firefox-devtools-mcpTools Reference

resolve_uid_to_selector

Convert UID to CSS selector

Convert a snapshot UID to a CSS selector.

Parameters

Parameter	Type	Required	Description
`uid`	string	Yes	Element UID from snapshot

{
  "tool": "resolve_uid_to_selector",
  "arguments": {
    "uid": "uid-abc123"
  }
}

Returns the CSS selector for the element.

take_snapshot

Get HTML content with element UIDs

clear_snapshot

Clear snapshot cache