Rated 5 out of 5 stars

by Anup on Nov. 25, 2016 ·

no longer working on v.51 beta.

This review is for a previous version of the add-on (0.2.0). 

by Infocatcher (Developer) on Nov. 25, 2016 ·

See https://github.com/Infocatcher/Private_Tab/issues/237
and https://bugzilla.mozilla.org/show_bug.cgi?id=1318388
The Firefox itself should be updated... :(