Re: Firebox - Keyboard shortcuts for bookmarks?

["a.list.address@gmail.com" <a.list.address@gmail.com>]

You can assign bookmarks keywords.  Then press F6, type the keyword,
and hit enter.

For example, set a Google bookmark to the keyword "g", then press <F6>
<g> <Enter> and it will go to Google.

That's as close as you can get, AFAIK.