Rated 5 out of 5 stars

AWESOME Addon , the shortcut is Ctrl+Alt+P ,
can you please add it in the main menu ? http://d.pr/i/Ksla

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

Which shortcut?
You can use Ctrl+Alt+P to open new private tab and Ctrl+Alt+V to toggle private mode of current tab.

Or you can change these hotkeys in about:config page, see notes for extensions.privateTab.key* preferences in

[Added later]
> can you please add it in the main menu ? http://d.pr/i/Ksla
Strange, this works for me on Windows.

Could you please set extensions.privateTab.debug to true in about:config page and provide information from Error Console (Ctrl+Shift+J).
Hotkeys initialises on startup or extension enabling/updating, so just install it again to get all messages and errors.

Messages should looks like
[Private Tab] ...
And errors/warnings:
Error: ...
Source file: resource://gre/modules/XPIProvider.jsm -> jar:file:///.../extensions/privateTab@infocatcher.xpi!/bootstrap.js

(You can post report here: https://github.com/Infocatcher/Private_Tab/issues or here: http://forums.mozillazine.org/viewtopic.php?t=2665169)