Assegnate 3 su 5 stelle

Thanks Paolo for looking into this.
I installed the latest version 1.7.5.1 but it still didn't fix the problem.
I then went to about:config and changed the property of "extensions.profileswitcher.use_onbeforeunload" to false in all the profiles I have created and I can finally switch between them again.

Questa recensione riguarda una versione precedente (1.7.5.1-signed) del componente aggiuntivo.  Questo utente ha inserito una recensione precedente su questo componente aggiuntivo.

Install the 1.7.6.1 when it will be approved by AMO and try to revert that preference to true, it should work as expected