We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

just downloaded 4.01, now i can only open 10 tabs at once, why???

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

more options

just downloaded 4.01, and now i can only open 8-10 tabs at once... why?

just downloaded 4.01, and now i can only open 8-10 tabs at once... why?

All Replies (1)

more options

This issue can be caused by an extension that isn't working properly.

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).