I use Firefox 20 on my Nexus 7 tablet and under Linux. This is my desktop browser string:
Mozilla/5.0 (X11; Linux x86_64; rv:20.0) Gecko/20100101 Firefox/20.0
On the tablet, it is possible to open a "Private Tab" and also Chrome supports such a feature. On my desktop, however, only the option "New Private Window" is given.
I'd like to run Gmail in a private, pinned tab in Firefox. Is this possible?