Open Edit/Preferences/Privacy&Security/Passwords, then click Manage Passwords, then click either OK or Cancel. In either case (and this seems to be true for any modal dialog opened from within any other dialog), what you expect is to return to the parent (Prefs) dialog as the active window. What happens on Windows 2000 is, the Prefs dialog goes behind the window that was active before you first opened the Prefs dialog, and that window becomes frontmost. Very confusing.
16 years ago
Dupe of bug 122765?
*** This bug has been marked as a duplicate of 122765 ***