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Firefox closes when laptop is in sleep mode

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Hi, I run windows 11 on my laptop. Whenever my laptop goes in sleep mode, all Firefox tabs closes automatically for no reason! and when I open it again a button appears saying (Restore old session) I need it Firefox to stay opened when the laptop goes to sleep. How can I fix that? Thanks in advance.

Hi, I run windows 11 on my laptop. Whenever my laptop goes in sleep mode, all Firefox tabs closes automatically for no reason! and when I open it again a button appears saying (Restore old session) I need it Firefox to stay opened when the laptop goes to sleep. How can I fix that? Thanks in advance.

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That would drive me crazy.

I can't think of a Firefox setting to intentionally have Firefox close itself when Windows goes to sleep. Does Windows 11 have any sleep mode settings that could be related to this?