Favorites disappearance when update

Hi, everytime "Firefox" (snap version) and "Thunderbird" (snap version) have an update they disappear from "favorite". Their icon also disappear from the desk (but the link stays). 'I will report it to xfdesktop (Reported here : xfce/xfdesktop#436). Have a nice day !

Xubuntu LTS 24.04 xfdesktop4 4.18.1-1build3