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Unable to restore default newtab setting

  • 5 antwoorden
  • 49 hebben dit probleem
  • 2 weergaven
  • Laatste antwoord van jradams11

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Since a few days ago, the settings for opening a new tab in firefox have changed to redirect me to "http://www.4-you.net/". I have tried using the About:config menus to restore the default newtab page, and also attempted to use a "restore all defaults" add-on to the browser, but neither method solved the problem. Can someone help me get rid of this annoying new setting and restore the default setting?

Gekozen oplossing

Note that your System Details List shows that you have a user.js file in the profile folder to initialize some prefs on each start of Firefox.

The user.js file is only present if you or other software has created it, so normally it wouldn't be there. you can check its content with a plain text editor if you didn't create this file yourself.

The user.js file is read each time you start Firefox and initializes preferences to the value specified in this file, so preferences set via user.js can only be changed temporarily for the current session.

Rename or delete the prefs.js file and possible numbered prefs-##.js files and a possible user.js file to reset all prefs to the default value.

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Alle antwoorden (5)

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Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try these free programs to scan for malware, which work with your existing antivirus software:

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.


Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!

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I ran the "Hitman" program, and while it seems to have removed some threats, I have still been unable to resolve the problem. The new tab still goes to the incorrect place, and I am still unable to effect a change to the setting via the About:config menu.

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  1. In the Location bar, type about:config and press Enter. The about:config "This might void your warranty!" warning page may appear.
  2. Click I'll be careful, I promise!, to continue to the about:config page.

Search the string "browser.newtab.url", double click on it and change the value to www.google.com. Then reset firefox

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Gekozen oplossing

Note that your System Details List shows that you have a user.js file in the profile folder to initialize some prefs on each start of Firefox.

The user.js file is only present if you or other software has created it, so normally it wouldn't be there. you can check its content with a plain text editor if you didn't create this file yourself.

The user.js file is read each time you start Firefox and initializes preferences to the value specified in this file, so preferences set via user.js can only be changed temporarily for the current session.

Rename or delete the prefs.js file and possible numbered prefs-##.js files and a possible user.js file to reset all prefs to the default value.

more options

This worked out, thanks a lot!