logickills said:sessionstore.js if I recall correctly.
The purpose of Firefox storing the last session when it crashes is to allow the user to easily restore their previous browsing session without losing any open tabs or unsaved data.
To access the files/folders where Firefox stores the last session, you can navigate to the following path on your computer: C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}\sessionstore-backups. Please note that the exact path may vary depending on your operating system and Firefox version.
Yes, you can change the location where Firefox stores the last session by modifying the browser.sessionstore.interval preference in the Firefox about:config page. Simply enter the new path you want to use for session storage.
No, Firefox will only store the last session if it crashes unexpectedly. If you manually close the browser, it will not save your current session.
The duration for which Firefox stores the last session can vary depending on your browser settings. By default, Firefox will store the last session for up to 3 days. However, you can change this duration by modifying the browser.sessionstore.max_resumed_crashes preference in the Firefox about:config page.