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.

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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

Unable to select tab in FF developer edition 40.0a mac 10.9.5

  • 1 baphendule
  • 2 zinale nkinga
  • 2 views
  • Igcine ukuphendulwa ngu cor-el

more options

In Firefox developer edition 40.0a on Mac 10.9.5 Firefox Developer Theme doesn't allow to select tabs, only to close them clicking on the x icon, i had to switch to default theme.

In Firefox developer edition 40.0a on Mac 10.9.5 Firefox Developer Theme doesn't allow to select tabs, only to close them clicking on the x icon, i had to switch to default theme.

All Replies (1)

more options

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window