400124 - "this login already exists" error and "remember password?" bar won't go away

Status: RESOLVED DUPLICATE of bug 397799

(Toolkit :: Password Manager, defect)

Description

[Myk Melez [:myk] [@mykmelez]]

After selecting one of my two logins on a Lufthansa account login page and submitting the form, Firefox asked me if I wanted to remember the password.  I clicked the Remember button, but nothing happened, and the following exception was reported on the console:

Error: 'This login already exists.' when calling method: [nsILoginManager::addLogin] = NS_ERROR_XPC_JS_THREW_STRING
Source file: file:///home/myk/Applications/firefox-trunk/components/nsLoginManagerPrompter.js
Line: 344

Repeatedly clicking the Remember button resulted in additional exceptions being reported, and the bar wouldn't disappear.  But it did disappear after I clicked the close button.

I tried it again after restarting Firefox (which froze on me--unrelated, I think), and the same thing happened, so this seems consistently reproducable.  It also seems like the kind of thing that would have already been reported, but I couldn't find a dupe.