Per-window private browsing is implemented and available in Nightly according to [1] (so, most likely in Aurora after the release shift this week). So hopefully

Per-window private browsing is implemented and available in Nightly according to [1] (so, most likely in Aurora after the release shift this week). So hopefully it'll be in Firefox 20. Meta-bug for per-window private browsing in Bugzilla is [2]. [1] https://hacks.mozilla.org/2012/12/firefox-development-highlights-per-window-private-browsing-canvas-globalcompositeoperation-new-values/ https://hacks.mozilla.org/2012/12/firefox-development-highli... [2] https://bugzilla.mozilla.org/show_bug.cgi?id=463027 https://bugzilla.mozilla.org/show_bug.cgi?id=463027