5점중 3점 받음

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.

이 검토는 현재 부가 기능의 이전 (1.7.5.1-signed) 버전에 대한 것입니다.  전에 이 사용자는 이 부가 기능에 1개 검토를 했습니다.

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