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

Why am I unable to open multiple tabs in the browser? It all of a sudden refused to let me open more than one at a time.

  • 1 reply
  • 47 have this problem
  • 1 view
  • Last reply by cor-el

more options

While on the internet, I tried to open two tabs, but it won't open any more for me. I tried right clicking and opening that way, but it won't let me. I removed Mozilla Firefox from my computer and re-downloaded it, but it still won't let me open more than one tab. It's happened to two of my computers now, and nothing works for either one except opening in safe mode every time.

While on the internet, I tried to open two tabs, but it won't open any more for me. I tried right clicking and opening that way, but it won't let me. I removed Mozilla Firefox from my computer and re-downloaded it, but it still won't let me open more than one tab. It's happened to two of my computers now, and nothing works for either one except opening in safe mode every time.

All Replies (1)

more options

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

  • Don't make any changes on the Safe mode start window.

See:

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")