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!

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.

Cari Bantuan

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.

Pelajari Lebih Lanjut

In one Firefox window both the "+" sign to add another tab and tab groups symbol have dissappeared. Can't access tab groups nor add tabs anymore.

  • 2 balas
  • 3 memiliki masalah ini
  • 9 kunjungan
  • Balasan terakhir oleh Wesley Branton

more options

Both are present in other windows I have open inside of Firefox. Software OS X 10.8.4 (12E55) FF: version 22.0

All new tabs open in a different window than the one with missing tab groups and "+"-sign even when generated from this window. Closing open tabs does not help.

Both are present in other windows I have open inside of Firefox. Software OS X 10.8.4 (12E55) FF: version 22.0 All new tabs open in a different window than the one with missing tab groups and "+"-sign even when generated from this window. Closing open tabs does not help.

Semua Balasan (2)

more options

Maybe you should move the tabs to a new window and close this window if it isn't working properly.
It is probably not possible to repair this window.

more options

This could be a problem with an extension that you have installed.
Run Firefox in Safe Mode and see if the problem still occurs.

About Firefox Safe Mode