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firefox deleted my open window with important tabs

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  • Last reply by TechHorse

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i installed an extension to i closed firefox and re-opened it my other windows were all there but the only one i cared about is gone. nothing in recently closed

i installed an extension to i closed firefox and re-opened it my other windows were all there but the only one i cared about is gone. nothing in recently closed
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Have you tried selecting "Restore Previous Session" in the history menu?