FYI firefox nightly issue

['John Clements' via dev-redirect]

JFYI: Firefox Nightly (the super-bleeding-edge nightly build of Firefox) will show you a blank page every time you visit Racket’s Help Desk. This is because of bug #1146969, which won’t allow a sandboxed browser window to open any file in ~/Library. This will probably never be a problem for most users, since this bug will presumably be fixed before sandboxing becomes a part of stable Firefox. If you start seeing documentation pages coming up blank in Firefox, though, you can check on the status of this bug.

https://bugzilla.mozilla.org/show_bug.cgi?id=1146969