What is Costmin?

Costmin is a browser extension that comes bundled with free software without user consent. Costmin hijack popular browsers such as Mozilla Firefox, Google Chrome and Internet Explorer. Costmin distributes and displays promotional products in the form of banner ads, coupons, and more. Thus, Costmin promotes products of popular sites as Amazon, eBay and so on. Advertising that Costmin shows can occur at any point of your browsing. It constantly interfere with the user. Costmin also adds a browser toolbar, which is a big part of the screen. The developers of this program claim that Costmin created in order to help the user to make purchases. In fact, this program is designed for developers and authors of advertising sites to earn money. In general, Costmin isn’t a virus, but this program is one of the potentially unwanted programs. Because of this, we recommend that you uninstall (remove) Costmin right now.

costmin ads

How Costmin gets on your PC?

Costmin distributed with popular programs. Many sites such as download.com, distributed free of charge, by which malicious software comes to your computer. Also, some sites create their own download managers and introduce unwanted programs in it. Sometimes, you can manually install this program because you don”t know about the dangers of it. Always be very careful when installing programs. Choose an expanded view of the installation and check everything you offering this program. Take your time and don”t click the “Next” button, until you are confident in the safety of the installation. You can also use special programs to protect your PC.

How to remove Costmin from your computer?

To uninstall Costmin remove it from Control Panel, then delete all files and regkeys.

In our view, there are 3 products that potentially have Costmin in their database. You can try to use them for removing Costmin.

Recommended Solution:

Norton is a powerful removal tool. It can remove all instances of newest viruses, similar to Costmin – files, folders, registry keys.


Download Norton*Trial version of Norton provides detection of computer viruses for FREE. To remove malware, you have to purchase the full version of Norton.

Alternative Solution:

Norton Antivirus – detects files, registry values and folders of viruses that show the same behavior as Costmin.


Download Norton

You can try both of these products to remove Costmin

Or uninstall Costmin manually.

Removing from Control Panel

Windows XP:

  1. Click Start.
  2. Control Panel.
  3. Then click Add or Remove Programs.
  4. Find Costmin.
  5. Click Uninstall.

Learn more about uninstallation of programs in Windows XP.

Windows 7/Windows Vista:

  1. Click Start.
  2. Then Control Panel.
  3. Click Uninstall a Program.
  4. Find Costmin and click Uninstall.

Learn more about uninstallation of programs in Windows 7.

Windows 8/Windows 8.1:

  1. Open the Menu.
  2. Click Search.
  3. After that click Apps.
  4. Then Control Panel.
  5. Then as in Windows 7, click Uninstall a Program under Programs.
  6. Find Costmin, select it and click Uninstall.

Learn more about uninstallation of programs in Windows 8 (8.1).

After that remove Costmin from your browser.

Google Chrome:

  1. Open Google Chrome
  2. Push Alt + F.
  3. Click Tools.
  4. Choose Extensions.
  5. Find Costmin.
  6. Click the trash can icon to remove it.

Learn more about removing extensions from Chrome.

Mozilla Firefox:

  1. Open Firefox.
  2. Push Shift + Ctrl + A.
  3. Choose Costmin.
  4. Click Disable or Remove button.

Learn more about removing extensions from Firefox.

Internet Explorer:

  1. Open IE.
  2. Push Alt + T.
  3. Click Manage Add-ons.
  4. Select Toolbars and Extensions.
  5. Click Disable Costmin.
  6. Click More information link in the left-bottom corner.
  7. Click Remove button.
  8. If this button is grayed out – perform alternative steps.

Learn more about removing extensions from IE.

Remove following registry entries:

HKLMSOFTWAREMicrosoftWindowsCurrentVersionExplorerBrowser Helper Objects{4BC4CBE1-2827-2107-E4B3-2DA00A936E70}

Then remove following files:


And following folders

C:Program FilesCostmin

Written by Rami Douafi

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