Does it appear when you press Ctrl+n to launch a new window in Firefox, or only when you first start the program? Or does it open randomly?

If it happens at startup, does it matter whether you use the Firefox program icon or use another shortcut?

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 Safety Scanner
• MalwareBytes' Anti-Malware
• TDSSKiller - AntiRootkit Utility
• Hitman Pro
• ESET Online Scanner

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!

Scan PC with Adwcleaner, Spyhunter, Junkware removal tool. QVO6 comes with several programs that freeze browser settings and it looks like it changed the way the freeze is done now.

Step1: Reset all the Browsers.

1. Internet Explorer
2. Open Internet Explorer on your computer.
3. Click on the Gear Icon at the Top of the Browser window and click on Internet Option.
4. Go to Advanced Tab.
5. Click on the reset button.
6. A Dialogue box will pop on your screen.
7. Click on the check box to delete all your personal settings.
8. Click on Reset Button.
9. When Internet Explorer finishes resetting, click Close in the confirmation dialogue box and then click OK.
10. Your browser is now reset to its default settings.

Watch this video: How to Remove Qvo6 Toolbar from Internet Explorer

Firefox

edit additional information and preliminary steps suggested by a moderator ~J99

1. Read Reset Firefox preferences to troubleshoot and fix problems
   note you will lose some information including open tabs,
   and any extensions will be uninstalled.
2. You may wish to
   Close all unnecessary open tabs.
   Boookmark any open tabs, and the home websites of all Firefox extensions that you have installed.
   See also Find and install add-ons to add features to Firefox

1. Open Firefox Browser on your computer.
2. Move your mouse to the top of the screen. Right Click and select menu bar.
3. This displays menu bar.
4. Click on the Help Menu.
5. Now, click on Troubleshooting Information.
6. Click the Reset Firefox button in the upper-right corner of the Troubleshooting Information page.
7. To continue, click Reset Firefox in the confirmation window that opens.
8. Firefox will close and reset to its default settings.

Watch this video:How to Remove Qvo6 Toolbar from Mozilla Firefox

Chrome

1. Click the Page Icon at the top right corner of the browser.
2. Select Settings.
3. Click Show advanced settings Link
4. Scroll down and find the "Reset browser settings” section.
5. Click Reset browser settings button.
6. In the dialog that appears, click Reset.
7. Close and Open the Browser again.
8. Google Chrome is now reset to its default settings.

Watch this video:How to Remove Qvo6 from Google Chrome

Step 2: Clean your computer with Adwcleaner. Download Adwcleaner Here: http://general-changelog-team.fr/fr/downloads/viewdownload/20-outils-de- xplode/2-adwcleaner

Step 3: Remove any unwanted softwares Go to Control panel Click on Uninstall a Program Link. Look for any unwanted toolbars / softwares and click uninstall.

Step 4. Scan your computer with Malware bytes or any Updated Anti Malware Software You have. You can download Malware bytes here: http://www.bleepingcomputer.com/download/malwarebytes-anti-malware/