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former tab opens when click "Undo" -how stop?

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  • 2 have this problem
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  • Last reply by cor-el

bedouin1990
bedouin1990
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Just installed FF v.4- each time I close a tab, the former tab re-opens. The same occurs when I right click then click, "Undo." Also when I shut down computer then open FF, my last tab opens.

How do I stop this?

Thanks

Just installed FF v.4- each time I close a tab, the former tab re-opens. The same occurs when I right click then click, "Undo." Also when I shut down computer then open FF, my last tab opens. How do I stop this? Thanks

All Replies (1)

cor-el
cor-el
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  • Top 10 Contributor
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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

In Firefox 4 you can use one of these to start in Safe mode:

  • Help > Restart with Add-ons Disabled
  • Hold down the Shift key while double clicking the Firefox desktop shortcut (Windows)