5점중 3점 받음

When I click "install in Thunderbird" nothing happens
No error, but no add-on in the installed list as well

이 검토는 현재 부가 기능의 이전 (3.5.1) 버전에 대한 것입니다. 

That sounds like an addons site problem, but I can maybe help pin it down if you email me. Please raise issues via github, though, and not the ratings mechanism, I don't always see these.