I want to format my set upl of 9.10 in order to dispose of older 8.4-8.10-9.4 "upgrade" package.

I do but want to save my 9.4 bookmarks (NAS,ftp etc) as well as corresponding keys, pwds & logins.

What do I specially want to back up from my 9.4 install in order to repair these settings on a clean install of 9.10, as well as how do I restore them?

All docs, mail, web stuff, etc is backed up and "understood" so, not a trouble.