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Helllo I cannot activate the setting in the options panel get Firefox to restore the tabs from the previous session. The option is grayed out. What can I do?

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When I start Firefox itt will not restore the tabs I had open during shutdown on the last session. This used to be an option when working on something in order not to have to leave the pc on over night. Now the option under Firefox/Options/General: On Firefox Startup: "Restore the tabs & Windows that were open in the last Firefox session" is grayed out, so that I cannot select it.

When I start Firefox itt will not restore the tabs I had open during shutdown on the last session. This used to be an option when working on something in order not to have to leave the pc on over night. Now the option under Firefox/Options/General: On Firefox Startup: "Restore the tabs & Windows that were open in the last Firefox session" is grayed out, so that I cannot select it.

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Make sure that you do not run Firefox in permanent Private Browsing mode.

  • https://support.mozilla.com/kb/Private+Browsing
  • You enter Private Browsing mode if you select: Tools > Options > Privacy > History: Firefox will: "Never Remember History"
  • To see all History and Cookie settings, choose: Tools > Options > Privacy, choose the setting Firefox will: Use custom settings for history
  • Deselect: [ ] "Permanent Private Browsing mode"

There are other things that need your attention.

Your above posted system details show outdated plugin(s) with known security and stability risks that you should update.

  • Shockwave Flash 10.1 r102

Update the Flash plugin to the latest version.