When using Firefox with Plasma integration add-on, I can't hide "Share" menu entry no matter if add-on's preferences toggle for it is enabled or not. To reproduce: Open any page. Right click on it - you see "Share" in the menu while the setting for add-on is un-toggled. Firefox: 130.0b6 Plasma integration add-on: 1.9.1 Plasma: 6.1.4 (from Debian experimental)
I think the bug might be in the Firefox add-on itself, since it wasn't updated since June.
Any news on this? The add-on hasn't been updated in a while.