The private browsing approach didn't work for me since there is a visible indication in the title bar that the window is private, which I don't want. I ended up solving this by observing sessionstore-state-write and changing the session data manually (possible since it is passed in as the subject using nsISupportsString). Not very convenient but it works.
I also filed https://bugzilla.mozilla.org/show_bug.cgi?id=930713. Matt _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
