Where does Firefox store the opened windows/tabs/urls for Session Restore after a crash?

Question

In which location and file does Firefox save the last windows I had opened (when Firefox crashed)?

I have a complete "hot dump" copy of a file system and need to restore the state Firefox was when the system crashed, but I cannot restore the full backup itself. I can only extract the files of Firefox, but I do not know in which files I have to search for the urls that were last opened when the snapshot of the whole file system was done.

Answer 1

It's in sessionstore.js in your profile directory.

(This might also show sessionstore.bak, which is a backup of the previous version of that file.)