Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

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 amsoshi
  • 3 sa na da wannan matsala
  • 9 views
  • Amsa ta ƙarshe daga 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.

All Replies (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