All of the HELP articles I've found are for version 4--I have version 14. One thing you can do is put the most recent problems first, NOT the problems from 10 versions ago.
I want to make the default setting to be ALWAYS SAVE TABS ON EXIT. Put this option someplace easy to find, like the TOOLS / OPTIONS / TABS section. It seems like this has been an on-going problem for many versions of FIREFOX. I had it available in prior versions, but it's not there now. Why would you take it out?