I've had a persistent home drive for several years (just remount home without format). This has kept all my desktop settings the same no matter what version of Ubuntu I install, including Neon. I just upgraded to Kubuntu 22.04 and decided to have a completely clean profile by creating a new home directory. I prefer using Firefox Nightly instead of the default installed version. I add it to the application menu, using the command "/home/carl/MyApps/Nightly/firefox" and then Add to Panel. On my old desktop, I could right click on the Nightly icon, either on the panel or in the menu, and select Open in Private Mode (or something very similar). I can't do that on this new desktop. When I right click on the icon, I get Properties, Add Widget and Enter Edit Mode. Can someone assist in configuring the option to run in private mode?