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

Plus sign (new tab) stopped working

  • 4 replies
  • 7 have this problem
  • 2 views
  • Last reply by Len

more options

Used to have a plus sign adjacent to current window tab. Lately it's gone. When I type about:config and scroll down to the entries for browser.newtab there is an entry: browser.newtab.blocked followed by "user set" and to the right, what appears to be a registry string of characters.

How do I restore the original new tab function?

Used to have a plus sign adjacent to current window tab. Lately it's gone. When I type about:config and scroll down to the entries for browser.newtab there is an entry: browser.newtab.blocked followed by "user set" and to the right, what appears to be a registry string of characters. How do I restore the original new tab function?

Chosen solution

I think the problem isnt this option, try start FIrefox in Safe Mode:

Read this answer in context 👍 2

All Replies (4)

more options

Chosen Solution

I think the problem isnt this option, try start FIrefox in Safe Mode:

more options

You can check for problems caused by a corrupted localstore.rdf file.

more options

Thanks for the help. Could not find this file, so I reset and reconfigured FF.

more options

Restart in safe mode, and other suggestions I read, did not fix my problem. So I did the FF reset, reconfigured my settings and now all is good again. Thanks for your help.