Mustang Browser Adware

What is Mustang Browser?

Mustang is a dubious chromium-based web browser that claims to improve Internet browsing performance and protect systems when entering malicious sites.

 These fake promises often trick users into believing that Mustang is a legitimate application, however, this browser is classed as a potentially unwanted program (PUP) and adware. Mustang Browser infiltrates systems without users’ permission, tracks Internet browsing activity, and delivers intrusive online advertisements.

Mustang employs a 'virtual layer' to generate pop-up, banner, interstitial, and other similar intrusive advertisements. None originate from users' visited websites and conceal underlying content. This significantly diminishes the Internet browsing experience.

Furthermore, advertisements generated by Mustang browser can lead to infectious websites. Therefore, clicking them risks further adware or malware infections. In addition, Mustang continually gathers Internet Protocol (IP) addresses, websites visited, pages viewed, search queries, and other similar browsing-related information.

Some users may believe this information to be insignificant, however, it might contain private details. The developers of Mustang browser share this gathered data with cooperating third parties who often misuse personal data to generate revenue. Information tracking can lead to serious privacy issues or even identity theft. Mustang adware should be uninstalled immediately.

Research shows that there are hundreds of dubious web browsers falsely claiming to significantly improve the Internet browsing experience. 

Examples include Shield+, BrowserAir, WebVeil, and Kometa. All (including Mustang) are designed only to generate revenue for the developers. They deliver no real value for users. Applications such as Mustang browser track Internet browsing activity, cause unwanted browser redirects, and deliver intrusive online advertisements.

How did Mustang Browser install on my computer?

This dubious browser is free for anyone to download from its official website, however, developers also distribute this app using a deceptive software marketing method called 'bundling' (stealth installation of PUPs with regular software). Therefore, many users install this application inadvertently without their consent.

Developers hide Mustang within the 'Custom/Advanced' settings of download/installation, since many users do not pay enough attention during these processes and often rush when downloading and installing software, skipping most/all steps.

By concealing bundled software, developers virtually guarantee successful infiltration. By skipping any of these stages, users expose their systems to risk of infection.

How to avoid installation of potentially unwanted applications?

The key to computer safety is caution. Never rush the download or installation processes. Perform these processes using the 'Custom' or 'Advanced' settings. Closely observe each step and decline all additionally-included programs.

Mustang Browser adware installer set-up:

Screenshot of Mustang Browser application:

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Quick menu:

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

Mustang Browser 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 "Mustang Browser", select this entry and click "Uninstall" or "Remove".

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

Remove Mustang Browser adware from Internet browsers:

At time of research, Mustang Browser did not install its browser plug-ins on Internet Explorer, Google Chrome, or Mozilla Firefox, however, it was bundled with other adware. Therefore, you are advised to remove all potentially unwanted browser add-ons from your 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 any recently-installed suspicious browser extensions, select these entries and click "Remove".

Optional method:

If you continue to have problems with removal of the ads by mustang browser, 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 all recently-installed suspicious browser add-ons, select these entries and click the trash can icon.

Optional method:

If you continue to have problems with removal of the ads by mustang browser, 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.

Optional method:

Computer users who have problems with ads by mustang browser 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 mustang browser, 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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