Sandboxed tab freezes when detached into standalone window

[mooomooo]

Firefox has the feature "tear-off tabs" where you can drag a tab down to have it become its own window. If you do that with a sandboxed tab, the resulting tab in the new window is frozen --- it can't be used or closed until Firefox is restarted. I can create, use, and close other new tabs in the resulting window, but the initial one is forever locked.

[darkpisto]

I have same problem since the version 49.0.1.

And since 49.0.2, priv8 doesn't work.

[bakulf]

Ok, this is an bug in firefox (or in what priv8 does with firefox). I have to debug it a bit more.

[darkpisto]

Thank you and good luck to fix that @bakulf :)