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Restore previous session

Firefox Résolution de problèmes
cor-el replied il y a 5 ans
pursig39
pursig39

I had to update firefox. So I closed the five windows I had open then updated. When I re-opened firefox only 3 windows re-opened. How can I restore the other windows?

I had to update firefox. So I closed the five windows I had open then updated. When I re-opened firefox only 3 windows re-opened. How can I restore the other windows?

Toutes les réponses (2)

TyDraniu
TyDraniu
  • Les 10 premiers contributeurs

The number of windows to restore is controlled by the browser.sessionstore.max_windows_undo preference in about:config.

cor-el
cor-el
  • Modérateur

Note that if you leave all windows open that there is no real limit because the complete session should be restored. Only when you close tabs and windows there is a limit on how many tabs (25) and windows (3) you can reopen when the session is restored on the next start.

Firefox also creates upgrade.jsonlz4-<build_id> files during an upgrade of Firefox in the sessionstore-backups folder.