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Why does a tab close when I click on it?

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I usually have several tabs open in one window and I click from tab to tab---now when I click on the other tabs, they close--I just want to switch to the tab, not close it

I usually have several tabs open in one window and I click from tab to tab---now when I click on the other tabs, they close--I just want to switch to the tab, not close it

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Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window