Hi You mention a PC - are you using Firefox for the desktop or Firefox for Android?

I am using Firefox for desktop

Hi Ami95, Firefox normally retains your open windows and tabs when you use the Exit or Quit command. However, it doesn't work if you set Firefox to clear history when it closes. (1) Exit or Quit Closing individual windows makes it more difficult to restore your session fully. Instead, use the menu: * "3-bar" menu button > Exit or Quit * (Windows menu bar) File > Exit (2) Restore Previous Session This command should appear on the menu when a session history file is available at startup. You can access either: * "3-bar" menu button > Restore Previous Session * (menu bar) History > Restore Previous Session You also can set Firefox to restore the previous session automatically at startup. This article has more info: [[Restore previous session - Configure when Firefox shows your most recent tabs and windows]]. ---- If you have problems with the built-in feature, you can use an add-on to save your session. These are the ones I'm aware of that you might investigate/try out: ''Use database storage:'' * https://addons.mozilla.org/firefox/addon/tab-session-manager/ * https://addons.mozilla.org/firefox/addon/session-boss/ ''Use bookmark storage:'' * https://addons.mozilla.org/firefox/addon/session-sync/ * https://addons.mozilla.org/firefox/addon/my-sessions/