Error when trying to access restricted folder

[hardys]

when I try to open a restricted folder no passwortbox will open and I get the message
"Authentisierung fehlgeschlagen!

Der Server konnte nicht verifizieren, ob Sie autorisiert sind, auf den URL "/xxxxx/index.php" zuzugreifen. Entweder wurden falsche Referenzen (z.B. ein falsches Passwort) angegeben oder ihr Browser versteht nicht, wie die geforderten Referenzen zu übermitteln sind."

It is working in Seamonkey 2.46 and Firefox 52.02 but not with Seamonkey 2.48b1

[DanRaisch]

Moving to SeaMonkey Builds as the OP reports the issue does not appear in the release version.

[frg]

I have seen one or two references to this where the user wasn't asked for authorization. Mostly users with old profiles. Could you try it with a new test profile.

[frg]

Also there is aknown bug with authentication if you close the SeaMonkey window and reopen it while the mail window is still open:

https://bugzilla.mozilla.org/show_bug.cgi?id=1347857

[hardys]

I have just tried 2.49 Akalla Builds and the problem is solved there