QUOTE (Tom AZ @ Aug 15 2009, 01:11 AM)

I finally figured out the actual active bookmark file in Firefox Portable . . . it's "places.sqlite"
I really wish they'd go back to the old way of saving the bookmark file, that after having to manually add in bookmarks after doing a clean install sometime ago and I realized my backup did nothing as it was showing a months old version of my bookmarks.
Just make sure it's making bookmark backups for you, or better yet install
FEBE which you can configure to automatically make full profile backups.