5점중 5점 받음

Undo close tab doesn't work as it works in 'Default New Private Window' of Firefox. I think each 'Private Tab' is a 'New Private Window' in itself. Anyway the undo tab history can be mantain until atleast one 'Private Tab' is open like sharing memory, info between different tabs open with 'Private Tab'?

이 검토는 현재 부가 기능의 이전 (0.1.5.1-signed) 버전에 대한 것입니다. 

See my reply here:
http://forums.mozillazine.org/viewtopic.php?p=13153895#p13153895