Add an icon for the "Paste without formatting" context menu item

[Aleksandra0056]

Is your feature request related to a problem?

The "Paste without formatting" context menu item has no icon even if the userChrome.icon.menu.full is enabled.

If you can't make the mentioned item show, then try going to this website and right click on the main text area:

• https://onlinenotepad.org/notepad

The solution I'd like

Add an appropriate icon for the "Paste without formatting" context menu item, but make it show only when the userChrome.icon.menu.full is enabled.

The only problem would be where such an icon is in default places, so a custom-made icon would be good since Firefox UI Fix has had custom-made icons in recent months.

Screenshots or video

Alternatives I've considered

No response

Additional context

No response