If you are automatically being redirected to a fake page asking you to download an urgent or critical update, your system might be infected with a virus. This Firefox update virus asks the user to download an Urgent Firefox Update, which is a JavaScript file to plant viruses into your system. Do Not Download this file. However, if you already did, you will notice ads being injected into all the web pages you visit.

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This may also install new software and tools into your PC without your authorization or knowledge.

Steps to Remove Apps Installed by Firefox Update Virus (Part 1)

If your PC has been infected with this virus, follow this sequence of steps to remove it. (If you haven’t downloaded the script, you might not have adware on your PC. You can skip to Part 2 directly)

  • Launch the Control Panel. In order to do so, press the WinKey + S key combination.
  • Type control panel and select control panel from the list.
    Launch Control Pannel
    Launch Control Pannel
  • In the Control Panel window that opens, select Uninstall a program under the Programs heading.
  • Click on the Installed in the column heading. This will arrange the apps in the order of the installation date. Since most of the adware is installed without the permission of the user in the background, check for apps that you did not install by yourself. These apps will be installed recently by the Firefox update virus.
  • You can uninstall any such files by double-clicking the list entry.
  • Some of these apps won’t allow you to uninstall them. In such a case, you can use a third party uninstaller like Revo uninstaller.
  • You can try to remove any temporary files directly or by booting into the Safe Mode.

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How to Remove Firefox Update Virus Completely? (Part 2)

These steps do not remove the Firefox Update virus but the apps that were installed by the virus. To remove the virus, you will have to follow the steps given below:

  • Get a good antivirus like Avast or Malwarebytes from their official site. Do not use any third party sites to download them.
    Remove Apps Installed by Firefox Update
    Remove Apps Installed by Firefox Update
  • Once downloaded, install the respective antivirus software.
  • Launch a complete system-wide scan.
  • Take necessary action against the files infected with the Firefox update virus.
  • Uninstall Firefox and all the installed plugins.
  • Download the latest version of Firefox from here.
  • Install the latest version of Firefox that you downloaded.

See if you get redirected to the webpage again. If you do, you might need to reboot into safe mode and remove the infected files manually by yourself. If you don’t know how to boot your PC into Safe Mode, read the procedure that follows.


How to Boot PC into Safe Mode

Booting into safe mode is a tedious process after the Windows 8 update. In order to boot your system into safe mode:

  • Click on the power button in the safe menu.
  • Hold down the shift key and click on the Restart option.
  • Once your system turns on after the restart, you will find a screen to choose options.
  • Select the troubleshoot option from this list.
    Windows 10 safe mode
    Windows 10 safe mode
  • Click on the Advanced options from the screen that appears.
  • Find and click on the Startup options entry and single click Restart in the bottom right corner.
  • Once you do this, you should reboot into a Startup settings menu. Enable Safe Mode by pressing the right number key or function key.
  • Your system should now boot into Safe Mode. Restarting your PC will take you back to the normal mode.

Booting into Safe Mode is essential while dealing with the virus and infected files in Safe Mode only allows Windows applications and drivers to run. This is an excellent trick to resolve any issues without having to reinstall your copy of Windows.

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How to Keep Your Firefox Updated?

You can try to update your Firefox to the latest version to never face issue of Firefox update virus again. To update Firefox:

  • Launch Firefox by double-clicking the icon.
  • Click the menu button in the top right corner.
  • Press on the help button. This is a button with a question mark inside a circle.
  • Click on About Firefox. Firefox should start looking for any updates immediately.
  • Relaunch Firefox by clicking on the Restart to update Firefox button.
    Check for Updates FireFox
    Check for Updates FireFox
  • Once you have successfully updated Firefox, you will need to reset the settings in order to prevent the redirect due to the Firefox update virus.
  • Click the menu button again and select the help button again.
  • Select Troubleshooting information from the drop-down menu that appears.
  • Click on the Reset Firefox button in the top right.
  • In the pop up that appears, select Reset Firefox to reset your browser.

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Make sure that you install a good antivirus software after completing the procedure. This will not only remove any conflicting files but also keep you safe from any future threats.

Do not blindly download & install files from the internet. Make sure that you download only the data you need and nothing that you did not choose to download.

Freeware tends to install some adware along them without alerting the user. So, make sure you read the information displayed in each step during the information carefully.

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You can always find me playing the piano or playing FIFA when I'm not binge-watching TV Series with pizzas. Fountainhead of TechWhoop. Life motto: The only time success comes before work is in the dictionary.