This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Is there any way that the settings can be set to prevent firefox from opening duplicate copies on the same desktop. Cheers.

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

more options

with the tabbed browsing if a duplicate is opened and closed last the saved and protected tabs all lost when firefox re-starts. using tabbed browsing there is no need for more than 1 copy of firefox to be running. I would like to be able to prevent firefox from opening the duplicate copies. Cheers

with the tabbed browsing if a duplicate is opened and closed last the saved and protected tabs all lost when firefox re-starts. using tabbed browsing there is no need for more than 1 copy of firefox to be running. I would like to be able to prevent firefox from opening the duplicate copies. Cheers

All Replies (1)

more options

I'm not sure if I understand what you mean.

Can you try to explain it with an example?


Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).