How to remove Multi AdBlock adware and the advertisements it delivers
Written by Tomas Meskauskas on (updated)
What is Multi AdBlock?
Multi AdBlock is a browser extension endorsed as a tool capable of removing online advertisements. In fact, rather than eliminating ads, this fake adblocker delivers them. Due to this, it is categorized as adware.
Additionally, Multi AdBlock has data tracking capabilities, which are used to collect browsing-related information. Since most users download/install adware-type programs unintentionally, they are also classified as Potentially Unwanted Applications (PUAs).
Adware enables the placement of pop-ups, banners, surveys, coupons, and other intrusive advertisements on any visited website (or different interfaces). The delivered ads significantly diminish the browsing experience by overlaying page content and reducing browsing speed.
Furthermore, once clicked, intrusive ads can redirect to various misleading, deceptive/scam, and malicious websites. Some of these advertisements can even be triggered (when clicked) to execute scripts designed to download/install software (e.g., PUAs) without users' permission.
PUAs have varied dangerous functionality, and these functions can be in different combinations. For example, these apps can run intrusive advertisement campaigns and force-open dangerous websites.
Most PUAs (regardless of other capabilities) can track data, and this applies to Multi AdBlock. Information of interest includes: browsing and search engine histories, IP addresses, geolocations, and even personally identifiable details. PUA developers monetize the gathered data by sharing it with and/or selling it to third-parties (potentially, cyber criminals).
In summary, the presence of unwanted software on devices can result in system infections, serious privacy issues, financial loss, and identity theft. To protect device and user safety, all dubious applications and browser extensions/plug-ins must be removed immediately upon detection.
| Name | Ads by Multi AdBlock |
| Threat Type | Adware, Unwanted ads, Pop-up Virus |
| Browser Extension(s) | Multi AdBlock |
| Supposed Functionality | Advertisement removal (adblocker) |
| Symptoms | Seeing advertisements not originating from the sites you are browsing. Intrusive pop-up ads. Decreased Internet browsing speed. |
| Distribution Methods | Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers. |
| Damage | Decreased computer performance, browser tracking - privacy issues, possible additional malware infections. |
| Malware Removal (Windows) | To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner. |
SketchBall, Clear History, Chrome Tools, and Go Easy Directions Promos are some examples of software within the adware classification. It usually appears legitimate and offers a wide variety of "useful" functionalities, however, the promised functions are seldom operational. In fact, this is true of most PUAs.
The sole purpose of these unwanted apps is to generate revenue for the developers. Rather than delivering any real value, PUAs run intrusive advertisement campaigns, cause redirects, modify browsers (browser hijackers), and collect private data.
How did Multi AdBlock install on my computer?
PUAs are often downloaded/installed together with other products. This deceptive marketing technique of pre-packing regular software with unwanted or malicious additions is called "bundling".
By rushing through download/installation of software (e.g. ignoring terms, skipping steps and sections, using "Quick/Express" settings, etc.) many users risk unintentionally allowing bundled content into their devices. Intrusive advertisements proliferate PUAs as well. When clicked, the ads can execute scripts to download/install these applications without users' permission.
Some PUAs (including Multi AdBlock) have "official" download web pages from which they can be downloaded.
How to avoid installation of potentially unwanted applications
You are advised to research all software before download/installation. Use only official and verified download channels. Unofficial and free file-hosting websites, Peer-to-Peer sharing networks (BitTorrent, Gnutella, eMule), and other third party downloaders commonly offer harmful and bundled content, and are therefore untrusted and should be avoided.
When downloading/installing, read the terms, study all possible options, use the "Custom/Advanced" settings and opt-out of additional apps, tools, features, and so on.
Intrusive advertisements typically seem legitimate, however, they can redirect to dubious and malicious sites (e.g. gambling, pornography, adult-dating, and many others). If you encounter ads or redirects of this kind, inspect the system and remove all dubious applications and browser extensions/plug-ins immediately.
Installed programs must be activated and updated with tools or implemented functions that are provided by the official developers. No other third party, unofficial tools should be used.
Note that it is illegal to activate licensed software with ‘cracking’ tools. Files and programs should be downloaded from official websites and via direct download links. Avoid third party installers and the tools/sources mentioned above.
Do not open website links or files in irrelevant emails that are received from unknown, suspicious addresses. These bogus emails are often disguised as official and important. Regularly, scan your computer with reputable, up-to-date antivirus or anti-spyware software.
If your computer is already infected with Multi AdBlock, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate this adware.
Screenshots of the website used to promote Multi AdBlock adware:
Instant automatic malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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Quick menu:
- What is Multi AdBlock?
- STEP 1. Uninstall Multi AdBlock application using Control Panel.
- STEP 2. Remove Multi AdBlock ads from Google Chrome.
- STEP 3. Remove 'Ads by Multi AdBlock' from Mozilla Firefox.
- STEP 4. Remove Multi AdBlock extension from Safari.
- STEP 5. Remove rogue plug-ins from Microsoft Edge.
- STEP 6. Remove Multi AdBlock adware from Internet Explorer.
Multi AdBlock 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 "Multi AdBlock", select this entry and click "Uninstall" or "Remove".
After uninstalling the potentially unwanted application that causes Multi AdBlock ads, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.
Remove Multi AdBlock adware from Internet browsers:
Video showing how to remove potentially unwanted browser add-ons:
Remove malicious extensions from Google Chrome:
Click the Chrome menu icon 
(at the top right corner of Google Chrome), select "More tools" and click "Extensions". Locate "Multi AdBlock", select this entry and click the trash can icon.
Optional method:
If you continue to have problems with removal of the ads by multi adblock, 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 "Multi AdBlock".
Optional method:
Computer users who have problems with ads by multi adblock 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 multi adblock, 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.
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 "Multi AdBlock", select this entry and click "Remove".
Optional method:
If you continue to have problems with removal of the ads by multi adblock, 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.
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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Outstanding!
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