Bug: Paste via Lexical context menu not working in Firefox #9901

Lexical version: 0.53.0

Steps To Reproduce

1. Open the Lexical Playground in Firefox: https://playground.lexical.dev/?shouldUseLexicalContextMenu=true
2. Copy any text.
3. Right-click inside the editor to open the Lexical context menu.
4. Click "Paste".

The current behavior

Nothing gets pasted, and an error is thrown in the console.

The expected behavior

The copied content should be pasted into the editor.

Impact of fix

Affects Firefox users who use the Lexical context menu.