Thanks Kal! Looks like just what I wanted.
Not yet, but I will at work tomorrow.
I found a fix for the URL inline autocomplete, by the way. There is a hidden preference setting for it. Go to “about:config” and add a New boolean item “browser.urlbar.autoFill” with value “true” and restart the browser.
I am happy.
(On preview, I see that Firefox suffers from the “underscore preceding colon” issue. The address is actually “about(colon)config” with no underscore.