"NotFoundError: Node.removeChild: The node to be removed is not a child of this node" error in profiler

[canova]

This is moved from https://bugzilla.mozilla.org/show_bug.cgi?id=2033695
The bug contents:

Got this error today :

Uh oh, some unknown error happened in profiler.firefox.com.

NotFoundError: Node.removeChild: The node to be removed is not a child of this node.

Please report this issue to the developers, including the full error as displayed in the Developer Tools’ Web Console.

Cannot repro

console-export-2026-4-21_13-4-44.log

┆Issue is synchronized with this Jira Task