In the Finnish language pack, in the dialog box that asks whether
to accept a cookie, the check box and the Deny ("Estä") button
both have E as their access key.  The result is that pressing
Alt+E toggles the focus between the check box and the button.
Pressing E or Shift+E does nothing if the focus is in the check
box, and closes the dialog box (presumably by choosing the Deny
button) if the focus is not in the check box.

Within the XPI file, these access keys are defined in
chrome/fi/locale/fi/cookie/cookieAcceptDialog.dtd and
chrome/fi/locale/fi/cookie/cookieAcceptDialog.properties.
Although only one of them is in upper case, that does not
prevent the conflict.

Please change it so that no two widgets in the dialog box have
the same access key.  I suggest using K for the check box.

It seems this has not yet been fixed in the upstream repository:
http://hg.mozilla.org/releases/l10n/mozilla-aurora/fi/file/73c4feace425/toolkit/chrome/cookie/cookieAcceptDialog.dtd
but I'm not that familiar with their version-control practices.