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

New tab, navigation buttons, and help menu do not work.

  • 2 respostas
  • 4 have this problem
  • 1 view
  • Last reply by cor-el

more options

I am running 27.0.1 on a MacBook OSX 10.6.8. In the last week, I have noticed the appearance of the browser interface has changed, and when I start the browser it opens a blank page, but I have Google set as my home page. As I progress on the Internet, the navigate back button remains gray, and unusable. The new new tab button is also gray, and inoperable. The keyboard shortcuts for navigate back and new tab do not work either. I was going to try to reset Firefox, but none of the selections in the help menu work, except for Restart with Add-ons Disabled, which I have tried.

I am running 27.0.1 on a MacBook OSX 10.6.8. In the last week, I have noticed the appearance of the browser interface has changed, and when I start the browser it opens a blank page, but I have Google set as my home page. As I progress on the Internet, the navigate back button remains gray, and unusable. The new new tab button is also gray, and inoperable. The keyboard shortcuts for navigate back and new tab do not work either. I was going to try to reset Firefox, but none of the selections in the help menu work, except for Restart with Add-ons Disabled, which I have tried.

All Replies (2)

more options

Hello smartineau, type about:support in your address/location bar to bring up the Troubleshooting information page and then click the Reset Firefox… button to reset firefox.

thank you

more options

Try to repair the disk permissions:

Try to remove the Firefox plist file (org.mozilla.firefox.plist).

Go to "~/Library/Preferences" and remove the plist file for Firefox (org.mozilla.firefox.plist)


Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer some files from an existing profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem