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!

Avatar for Username

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Learn More

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

Can only open 4 tabs in window. Then + button doesn't work, and New Tab greyed-out in menu.

  • 1 antwurd
  • 2 hawwe dit probleem
  • 4 werjeftes
  • Lêste antwurd fan cor-el

peteran
peteran
more options

Running Firefox 7.0.1 on Mac OS X 10.7.1.

Number of tabs that can be opened in a single window is limited. Can't currently open more than four. Clicking the "+" button to the right of open tabs does nothing, and the "New Tab" option in the file menu is greyed out.

Running Firefox 7.0.1 on Mac OS X 10.7.1. Number of tabs that can be opened in a single window is limited. Can't currently open more than four. Clicking the "+" button to the right of open tabs does nothing, and the "New Tab" option in the file menu is greyed out.

Alle antwurden (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

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