Have you been wanting the ability to start your portable Firefox installs in Safe Mode?
It is a lot simpler than you might think and here is how you do it.
But what about portable installs?
If your portable install becomes a mess you usually just have to replace it.
Note: This shortcut modification performed on the Portable Firefox installs from portableapps.com.
when you obtain selected that, you will see the Properties window with the Shortcut tab displayed.
Now you are ready to modify the Target Path.