Local .desktop files

In XFCE, whenever I needed to customize some menu entry, I would just go to /usr/share/applications/ and edit the corresponding .desktop file. This applies the changes globally and whenever the program is updated the modified .desktop file will be overwritten.

However, there is a “local” approach for this, which will affect only the current user. Copy the .desktop file you want to edit to ~/.local/share/applications/.

Open it in a text editor, edit and save the changes. Now, the menu will display this local copy.