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What happened to "restore previous session?"

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The "restore previous session" option is no longer in the History section. All I can restore is individual pages. I often have a lot of tabs open, and twice now just in the last few weeks, I've lost the whole lot. One of those times I had closed Firefox, the other time it closed for no apparent reason.

The "restore previous session" option is no longer in the History section. All I can restore is individual pages. I often have a lot of tabs open, and twice now just in the last few weeks, I've lost the whole lot. One of those times I had closed Firefox, the other time it closed for no apparent reason.

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In case you use "Clear history when Firefox closes".

  • do not clear the Browsing History as this affects session restore
  • clearing "Site Preferences" clears exceptions for cookies, images, pop-up windows, and software installation and exceptions for passwords and other website specific data
  • clearing "Cookies" will remove all cookies including cookies with an allow exception you may want to keep