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How to reinstate all windows with their respective tabs after Firefox crashed?

Izabela90 replied
Izabela90

A few separate windows were open with several tabs open in each separate window. Losing such well organized sets of data was paralyzing, but I hope it will be possible to reinstate all sessions.

A few separate windows were open with several tabs open in each separate window. Losing such well organized sets of data was paralyzing, but I hope it will be possible to reinstate all sessions.

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選擇的解決方法

Try the menu "History" > "Restore previous session"

That option, "Restore previous session," was grayed out, as if I had no history to begin with.