I have been busy with a few things. I backed up some files so I could just transfer existing passwords and screen names when I reinstalled Ubuntu and Firefox. Problem is I didn't back up all I needed. So now I am stuck with rolling back to the ones I had in March. Problem is..... I forgot what all the files where that stored this info. I remember signons2 and formhistory (I think,) but that is it. Can anyone remind me what files I am leaving out?

I did great with all my ftp info and several pop3 accounts. Backed up all the right things. I am frustrated that I didn't backup Firefox the right way, like I did before, lol.

Why not just copy the original .mozilla dir and paste it into your /home

I have the settings different then I had from a few months ago, plus it is from XP when I backed it up there and moved them over to Ubuntu. I am hoping to just find the specific files to transfer over for the passwords and screen names. I have the info somewhere in my bookmarks. I did a quick search and didn't come up with anything. So I may have to go through it one link at a time, that is a lot of bookmarks. I think I need to name them better in the future, lol.

Someone like to explain to me how to do this? I joined in order to PM the user who posted this but apparently he has disabled PMs.

Important files in Firefox that I either already know about or have found and am assuming:

formhistory.sqlite - assuming this is the data that pops up when you type into input boxes, such as your address.
bookmarks.html - assuming this stores your bookmarks, however, places.sqlite is also related to bookmarks. Not sure on this file.
places.sqlite - This contains your browsing history and bookmarks.
localstore.rdf - This is your toolbar setup, but gets corrupted easily.
logins.json - asssuming this is the file you were asking about.
sessionstore.js - this is the most important file to save/keep/copy. This is the one that has your open tabs so you can "restore session" when you open.
sessionstore.bak - the previous "restoresession" that was from the last time you opened FF before your most recent time.

Note: There is also an "import bookmarks" option, so if you are not coping the entire application data Mozilla folder, it may make more sense to do it this way instead of copying files.

Add-Ons and Plugins cannot be easily transferred without copying the entire folder. I would suggest that these be re-installed for people who do not wish to copy the entire Mozilla Application Data folder.