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Most of the web pages on Firefox browser have a green "OFF" in the upper-right hand corner? Started showing up today. What is it?

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  • 1 has this problem
  • 5 views
  • Last reply by cor-el

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Using IMac with Mojave software.

No recent changes in add-ons/extensions.

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Can you attach a screenshot?

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window