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cannot restore history

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Accidentally closed browser with many multiple tabs open. Tried to restore history but option was grayed out. Tried several times but was not able to get back to the original browsing window with the multiple open tabs.

Would really appreciate help on this, if possible, as the many multiple tabs contained family history research that will be difficult to impossible to duplicate.

Thank you.

Accidentally closed browser with many multiple tabs open. Tried to restore history but option was grayed out. Tried several times but was not able to get back to the original browsing window with the multiple open tabs. Would really appreciate help on this, if possible, as the many multiple tabs contained family history research that will be difficult to impossible to duplicate. Thank you.

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Hi, what was grayed out, the "Restore Previous Session" item on the History menu?

Are there any promising leads in the "Recently Closed Windows" list on the History menu (or Ctrl+Shift+N)?