macOS FF147 and Main-menubar

[ChasCB]

Since macOS Tahoe and FF147 the main-menubar and some of the drop-down menus with icons are not being displayed as they used to.

Examples:

I had to really hunt round for this one:

/* Share */
menu[data-l10n-id="menu-file-share-url"] > .menu-icon {
  content: url("../../image/icons_fx_weblock/share.png")!important;
}

And can not get Work Offline displaying at all.

/* Work Offline */
#menu_goOfflineMenuitem > .menu-icon {
  content: url("../../image/icons_fx_weblock/Offline.png")!important;
}

All of the Edit menu no longer displays icons.

Example:

#menu_undo > .menu-icon {
  content: url("../../image/icons_fx_weblock/edit_Undo.png")!important;
	}

Strangely enough all of my Tools menu icons do display.

I have yet to attempt; View, History, Bookmarks, Window & Help as I have been doing this when time allows.

Any and All help solving this mystery appreciated.