How to Remove Extra Window from Mac

George Herman
George Herman
IT Security Expert

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What is Extra Window

Extra Window is promoted as a useful tool for Mac devices, which will supposedly add an extra screen of some sort. IT specialists categorize it as a PUP (Potentially Unwanted Program) which is known to affect Mac devices and flood their browsers with numerous aggressive advertisements. While this malicious software does not look dangerous, it could lead to some serious consequences, if not removed as soon as possible.

How it is distributed

This PUP is commonly spread via software ‘bundling’ and unreliable ads and websites. Users often rush into completing a software installation. By doing so, they unknowingly install shady content in the process. When you download software from the internet, it could be easy to miss the additional programs included in the installer. To make sure you view the full content of what you’re about to install on your Mac, simply opt for a custom/advanced type of installation. Then, look for any optional installations that may be included, and uncheck the boxes next to them, so they don’t get access to your Mac. If you fail to do this, they will get installed by default without your knowledge.

How it operates

Extra Window is known to be able to modify your Mac’s permissions, change your browser settings, and even monitor your online activity. It will collect data like browser history, GPS coordinates and search queries, to provide targeted content you’ll be most likely to click on. For each click you make, the parasite will generate revenue for its creators. The thing is, you can’t be certain where the ads will redirect you to. You may be led to potentially harmful third-party websites, which seek to open a backdoor to your system, so other threats can get in. This PUP can lead to the unresponsiveness of your browser, as well as a sudden drop in your internet speed. If you choose to stay idle and let this parasite roam free on your computer, you risk jeopardizing your personal information, which may get stolen from cyber criminals, who exploit this pest. If you want to protect your device and your online privacy, you need to remove Extra Window!

Staying safe from Extra Window

Apart from having a reliable AV software installed on your Mac, there are other things you can do to ensure your device’s safety. We highly recommend you to:

  • Pay close attention when you install third-party software, especially torrent files, so you don’t install shady additional applications that you don’t want. In most cases, that’s how malicious parasites are able to infect your computer;
  • Read any Terms and Conditions you see, so you know exactly what you agree to. The last thing you want is to unknowingly give permission to a nasty virus to infiltrate your Mac;
  • Follow links that lead to trustworthy sites only;
  • It is best to visit only reliable and official websites. You never know what dangers might lurk behind an unfamiliar site;
  • No matter how attractive an ad is, if you are not familiar with the website it redirects to, it might be best to steer clear of it and not click;
  • Always check the sender’s email address before opening a message. If it states that it’s from an official company, compare the email with the one given in their official page. If there is no match, delete the message, since it most likely is fake and has malicious aims;
  • Don’t open email attachments from unknown senders. More often than not, such files carry infections that can seriously damage your computer.

How to manually remove Extra Window from Mac

If you’ve had the misfortune of getting your Mac infected with the Extra Window PUP, the instructions below can help you to remove it manually. Here’s what you need to do:

1. Go to Utilities. You can do that by using the ⇧+⌘+U key combination, or by going to Finder and choosing Utilities from the Go main menu at the top.

2. Find Activity Monitor and double-click it.

3. A list will be displayed. Find any processes that seem suspicious to you and use the ‘Force Quit‘ option to quit them completely.

4. Open Finder. Click on the Go button from the main menu at the top, and choose Applications. An alternative way is to use the ⇧+⌘+A key combination.

5. Look for any suspicious applications, especially ones with a name similar to Extra Window. If any are found, right-click on them and select the ‘Move to Trash‘ option.

6. Remove any related left-over files by going to Finder‘s search bar and typing the name of the app you want to remove. Make sure to modify the two drop down menus above to ‘System Files‘ and ‘Are Included‘, so that any hidden files are visible for you to remove. Once you find the files you want to remove, simply drag them to Trash.

7. All that’s left for you to do is remove any related extensions to Extra Window from your Mac browsers.

For Mozilla Firefox extensions:

  • Open the Firefox browser and from the ‘burger’ menu in the top right corner of the window select ‘Add-ons’.
  • Select any suspicious extensions that may be related to the virus and click ‘Remove’.

For Google Chrome extensions:

  • Open the Chrome browser and select Tools > Extensions from the menu (the three dots in the top right corner of the browser window).
  • Locate any suspicious extensions that may be related to the virus and remove them.

For Safari extensions:

  • Open the Safari browser. From the Safari menu choose Preferences. Select Extensions from the options at the top.
  • Find any extensions you think are related to the virus, select them and click ‘Uninstall’. A new window will show up asking for confirmation. Click Uninstall again, for the extension to get deleted permanently from your browser.

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