Hi

Thank you for helping test future versions of Firefox by using a Nightly build. As you may be aware, Nightly may have some unresolved issues and it looks like you may have found one. The best thing to do is report is as a new bug at:

https://bugzilla.mozilla.org/home

Thank you for your help.

Should still be there in current Nightly builds, unless this works different if you install a different locale and not en-US, so maybe try en-US and if necessary install a language pack.

• Settings -> General -> Language ->
• Choose the languages used to display menus, messages, and notifications from Nightly.
• https://support.mozilla.org/en-US/kb/use-firefox-another-language

If you want to test the more unstable Nightly development channel that can get checkins and updates say twice a day, you should check out the Builds threads in http://forums.mozillazine.org/viewforum.php?f=23