Re: Can't enable store passwords. Disabled all plug-ins; no effect.
cor-el, you seem to have some standard copy-and-paste text to say "Make sure that you do not run Firefox in (permanent) Private Browsing mode."
I'm sure you're right, but could you be kind to this stupid, ignorant user and explain why one shouldn't run Firefox in (permanent) Private Browsing mode?
The link you point to (https://support.mozilla.org/kb/Private+Browsing) doesn't explain that, as far as I can see.