I read back and re-found this question. I haven't used direct access for myself. I always use quick recovery, and for firefox I added its profile folder so that I can either delete everything or selectively save each settings (usually addon setting changes). About bookmark, I use firefox sync so usually don't care much, tho of course if I delete sandbox before next sync from last bookmark added then I loose that bookmark. Anyway quick recovery shows all changed files so I can save bookmark if I added, but usually I don't.