Extreme Blocker Adware

What is Extreme Blocker?

Extreme Blocker is a dubious browser plug-in that supposedly blocks online advertisements displayed on visited websites - "Using Extreme Blockerer, you can now go ahead and surf all you want. The ads will forever be invisible. Not even one will stop you from surfing freely."

At first glance, the features offered may seem legitimate and useful, however, the Extreme Blocker add-on is categorized as a potentially unwanted program (PUP) and adware.  After Extreme Blocker successfully installs on Internet Explorer, Google Chrome, and Mozilla Firefox, it delivers intrusive online advertisements and gathering various user/system information.

This adware generates intrusive online advertisements (for example, coupon, banner, pop-up, etc.) using a virtual layer, which enables placement of any graphical content on visited websites. In doing so, Extreme Blocker significantly diminishes the Internet browsing experience, since the displayed ads conceal underlying content of visited websites.

Some ads can redirect to infectious sites, thereby causing high-risk computer infections. As with regular adware, Extreme Blocker tracks Internet browsing activity and continually gathers various user/system information, some of which may contain personally identifiable details.

The developers later share this information with third parties, and thus, having Extreme Blocker installed on your system can lead to serious privacy issues or even identity theft. You are strongly advised to uninstall this app immediately.

Adware-type applications often have similar behavior. There are hundreds of apps (for example, BestSaveForYou, Vidzy, Super Browser, and StormAlerts) claiming to improve the Internet browsing experience in various ways. Adware-type applications such as Extreme Blocker deliver fake promises simply to trick users to install.

The purpose of Extreme Blocker, and other similar applications, is to display advertisements and collect information to generate revenue - they deliver no real value for the user.

How did Extreme Blocker install on my computer?

The developers of Extreme Blocker distribute this application using a deceptive software marketing method called 'bundling' - stealth installation of third party applications with the chosen software. Many users are unaware that developers intentionally hide rogue applications within the 'Custom' or 'Advanced' settings.

Thus, by skipping this section, users can inadvertently install applications such as Extreme Blocker. The developers are concerned only with the amount of revenue generated, and thus, do not properly disclose installation of deceptive software.

How to avoid installation of potentially unwanted applications?

Express caution during the download and installation processes. Closely analyze each step and ensure that only the chosen software is downloaded/installed.

In addition, the download and installation processes should be performed with the 'Custom' or 'Advanced' options, rather than 'Quick' or 'Typical' - this will reveal any hidden third party apps listed for installation and allow you to decline them.

Intrusive online advertisements generated by Extreme Blocker adware (marked as 'Ads by Extreme Blocker'):

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Quick menu:

• What is Extreme Blocker?
• STEP 1. Uninstall Extreme Blocker application using Control Panel.
• STEP 2. Remove Extreme Blocker adware from Internet Explorer.
• STEP 3. Remove Extreme Blocker ads from Google Chrome.
• STEP 4. Remove 'Ads by Extreme Blocker' from Mozilla Firefox.
• STEP 5. Remove Extreme Blocker ads from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

Extreme Blocker adware removal:

Windows 11 users:

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window, look for "bestadblocker", select this entry and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted program that causes Extreme Blocker ads, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove Extreme Blocker ads from Internet browsers:

Video showing how to remove potentially unwanted browser add-ons:

Remove malicious add-ons from Internet Explorer:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for "bestadblocker", select this entry and click "Remove".

Optional method:

If you continue to have problems with removal of the ads by extreme blocker, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

In the opened window, select the Advanced tab.

Click the Reset button.

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "Tools" and click "Extensions". Locate "Extreme Blocker", select this entry and click the trash can icon.

Optional method:

If you continue to have problems with removal of the ads by extreme blocker, reset your Google Chrome browser settings. Click the Chrome menu icon  (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plug-ins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions", in the opened window, remove "bestadblocker 1.0".

Optional method:

Computer users who have problems with ads by extreme blocker removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active, click Safari menu, and select Preferences....

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon  (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Optional method:

If you continue to have problems with removal of the ads by extreme blocker, reset your Microsoft Edge browser settings. Click the Edge menu icon  (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

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