What is Browser Extension?
Intrusive online advertisements, 'Ad by Browser Extension', are delivered by potentially unwanted programs and browser extensions that employ a deceptive software marketing method called 'bundling' to infiltrate Internet browsers (Internet Explorer, Google Chrome, and Mozilla Firefox).
This marketing method allows developers to distribute their software together with other programs, and for this reason, most infections are caused by reckless download and installation of freeware downloads. Ads by Browser Extensions redirect users to the Advertising Support website.
The types advertisements delivered include banner, coupon, and pop-up ads. Clicking advertisements generated by rogue browser plug-ins (such as 'Ad by Browser Extension') may lead to further adware or malware infections.
Most popular freeware download websites including download.com, soft32.com, and softonic.com, use bundling to monetize their free services and traffic. Although these websites claim that download managers promote '100% legitimate and virus-free' applications, reckless download and installation of freeware often leads to high-risk adware or malware infections.
To prevent installation of adware that causes 'Ad by Browser Extension' advertisements, closely inspect each step of the free software download procedure and uncheck all additional applications (for example: add-ons, toolbars, browser setting modifications, etc.) listed for installation.
In addition, select the 'Custom' or 'Advanced' options when installing downloaded software - this will reveal any bundled applications listed for installation and allow you to decline them. You are strongly advised to follow the removal guide provided to uninstall all suspicious plug-ins from your Internet browsers.
Rogue browser add-ons that generate 'Ad by Browser Extension' advertisements are similar to other adware-type applications. These provide no useful features and deliver intrusive online ads. Some examples are WebBrowser, I-Cinema, SlimPrice, deals, and many others.
Intrusive online advertisements employed by these potentially unwanted programs are displayed on websites visited and are bundled with third-party browser plug-ins. Installation of browser extensions causing 'Ad by Browser Extensions' can be prevented by paying close attention to each step of the free software download and installation process.
To eliminate these annoying advertisements, study the extension list within your Internet browser settings and uninstall all suspicious recently-installed browser add-ons.
Browser Extension ads leading to the advertising-support.com website:
Intrusive online advertisements 'Ad by Browser Extension':
Instant automatic malware removal:
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- What is Ad by Browser Extension?
- STEP 1. Uninstall adware applications using Control Panel.
- STEP 2. Remove rogue plug-ins from Google Chrome.
- STEP 3. Remove adware-type extensions from Mozilla Firefox.
- STEP 4. Remove malicious extensions from Safari.
- STEP 5. Remove rogue plug-ins from Microsoft Edge.
- STEP 6. Remove adware from Internet Explorer.
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 any potentially unwanted applications, select these entries and click "Uninstall" or "Remove".
After uninstalling the potentially unwanted application that causes Ad by Browser Extension redirects, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.
Remove 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 all recently-installed suspicious browser add-ons and remove them.
If you continue to have problems with removal of the browser extension adware, 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 all recently-installed suspicious browser plug-ins.
Computer users who have problems with browser extension adware 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.
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.
If you continue to have problems with removal of the browser extension adware, 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 any recently-installed suspicious browser extensions, select these entries and click "Remove".
If you continue to have problems with removal of the browser extension adware, 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.
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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