FIX: Virus keeps opening tabs [Chrome & Firefox]

by Aleksandar Ognjanovic
Aleksandar Ognjanovic
Aleksandar Ognjanovic
Troubleshooting Expert
Aleksandar's main passion is technology. With a solid writing background, he is determined to bring the bleeding edge to the common user. With a keen eye, he always... read more
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  • If the browser keeps opening by itself in Windows 10, that's a sign that your computer is infected with a virus.
  • It's a good idea to start a full scan using Microsoft's antivirus that comes with your OS.
  • There's a possibility that you will need help from our recommended third-party security tool.
  • You should also do a serious check for the add-ons and extensions from your browsers and uninstall the untrusted ones. 
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Virus infection isn’t exactly a common occurrence, but certain viruses can inflict a strange behavior in both Windows 10-native and third-party applications.

One resilient virus is posing as quite a headache, even though it’s not a high-risk threat. Namely, users reported the same issue: my browser keeps opening random web pages!

Another similar behavior is that the browser keeps opening by itself in Windows 10. This can be quite an annoyance, but, with a little patience, you can resolve it.

In case you’re affected by this or a similar virus in your browser, make sure to check the solutions below. As an extra caution measure, you may also install an antivirus for browsing in Windows 10.

What can I do if viruses keep opening browser tabs?

1. Scan for viruses

  1. Click on the shield icon from the notification area to open Windows Security.
  2. Select Virus & threat protection.
  3. In the new window, click the Scan options button.
  4. Check the Full scan option and hit the Scan now button to launch a full system malware scan.

This seemingly erratic behavior is, on most occasions, caused by adware intruders. Most of the time, those nasty applications are mistakenly installed with other third-party programs.

Once there, the adware will infiltrate your web browser (or multiple browsers, depending on the type), and, from there, it will take over.

Its main purpose is to bombard you with frequent pop-ups and ads, redirect you to enlisted sites, or even change your search engine for some barely-known, malware-plagued alternative.

So, the first option in this situation is to run a full scan with Windows Defender, the built-in antivirus from Windows as shown in the steps above.

The Microsoft tool is pretty effective, but it can turn out not to be powerful enough to eliminate this malware. In this case, we recommend installing a third-party antivirus.

The tool recommended below comes prepared with the latest technologies for identifying and eliminating any malware from your PC.

It will detect and get rid of this pesky virus in no time and it will ensure further protection for your system and even your webcam or router.

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2. Check add-ons and extensions

The life of a common user would be much harder without web browser extensions and some of them are irreplaceable on a daily basis.

As you are probably aware, extensions or add-ons are provided by third-party sources and offer browser improvements in various categories.

But the fact that the third-party sources provide users with extensions opens up a loophole, a chance for malicious software to install in the background and meddle with your browser.

There are many ways an adware extension can access your browser, but only a few ways to get rid of it.

If the previous step hasn’t helped you remove suspicious extensions, you’ll need to get your hands dirty and remove them manually.

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Just navigate to Extensions or Add-ons (it varies) and remove every unknown or untrusted extension. Restart your browser and look for changes.

If that’s not enough and your tabs still open uncontrollably, continue with the steps below.

3. Remove related programs

  1. In the Windows Search bar, type control and open Control Panel.
  2. Select Programs and features.
  3. Find and uninstall all untrusted programs and restart your PC.

In addition to the integration through extensions, adware viruses can come in the form of an alternative third-party software included in major programs.

Most of the time, users install them mistakenly without even seeing their activity or prompt. They tend to work in the background, so that shouldn’t come as a surprise.

Even though they are sneaky by nature, these virus-ridden applications are applications, nonetheless. So, in most cases, you’ll be able to locate them within the Programs list in the Control Panel.

From there, you can easily uninstall them and hope for the resolution. Follow the instructions above to remove the suspicious program from your system.

Furthermore, it’s advised to delete their remaining folders from the Program Files and AppData folders.

4. Reinstall the browser

  1. Open Control Panel as shown in the previous step.
  2. Select Programs and features.
  3. Select the affected browser and remove it.virus keeps opening tabs
  4. Now, you can run a third-party cleaning tool and remove the remaining files. You can do it manually in the Program Files (Program Files x86) and AppData folders.
  5. Restart your PC.
  6. Download the browser installation file and install it.
  7. Check for changes and make sure that the problem is gone.

Finally, if you’re still stuck with the haunted browser and a pesky ghost virus that keeps opening your tabs erratically, the reinstallation of the browser itself is the next obvious step.

Now, the gravity of the problem insists on a more thorough approach than usual, so, in this case, you’ll need to clean all of the remaining leftovers that are not covered by the uninstaller.

Most users will turn to PC cleaning tools because they run dedicated scanners that are able to detect unnecessary files that are still on your PC.

We advise you do so and our top recommendation in this regard is CCleaner because along with its very capable junk file removal feature, it also has a built-in uninstaller, so you can do everything from one app.

After you completely remove your browser and all files related to it, you can download the installer wizard from a trusted source and reinstall it.

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With that, we can conclude the article. We hope that you found it helpful and informative and you managed to fix this issue with multiple windows opening uncontrollably in Windows 10.

In addition, make sure to take better care of third-party programs or add-ons, and don’t click on pop-ups and suspicious links.

Be careful because this thing can also happen at the office. Check out the best antiviruses for Windows Server to protect your company’s computers too.

What’s your experience with browser viruses and how do you usually deal with them? Tell us in the comments section below.

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Frequently Asked Questions

  • This behavior usually has to do with malware caught by your browser. One solution is to clean install your browser. Make sure you remove all leftovers for a fresh installation with the best uninstaller software.

  • Use a malware removal tool. Check out more tested solutions to eradicate new tab viruses.

  • You can use Chrome’s built-in anti-malware tool, the Windows Defender, or any third-party antivirus. Check out this list of the best antivirus tools for browsing while you’re at it.

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