Fedora seem to have hit the same issue: https://bugzilla.redhat.com/show_bug.cgi?id=1779570
I'm experiencing this with LastPass which is quite annoying, a fixed Debian build would be much appreciated!
- Bug#946547: firefox: Can't write to local storage in Firef... Peter Habcak
- Bug#946547: firefox: Can't write to local storage in ... Jethro Nederhof
