When I added the "Chat" tab to the address book cards I didn't notice
that the 'a' letter was already used by the work and home 'Address' fields.
I've just fixed this in
https://bugzilla.mozilla.org/show_bug.cgi?id=769917 by replacing the
accesskey of the 'Address' fields with 'd', and as accesskey changes
don't break other locales, I also landed this on comm-aurora.
This affects only the en-US locale, and although some locales I checked
don't have this accesskey conflict, other locales may contain the same
bug so I figured I would post here to clarify / give a heads up.
Florian