Oceniono na 4 z 5 możliwych gwiazdek

autor: SVT wystawiona: Sie. 24, 2014 ·

So after FF 31, with latest private tab update, i cant get into PRIVATE MODE, so your addon is useless now.

I removed the addon, installed it again, but to no avail.

Firefox default private WINDOW works flawlessly.

Ta opinia jest o wcześniejszej wersji dodatku (0.1.7.3.1-signed). 

przez Infocatcher (Autor) dnia Sie. 26, 2014 ·

This is most likely conflict with some another extension (like https://github.com/Infocatcher/Private_Tab/issues/110 or something similar).

So, please try on new Firefox profile (to ensure, that this is some conflict):
https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

And please also provide information from about:support page.