How to uninstall Ninja Browser unwanted application from computers
Written by Tomas Meskauskas on
What kind of application is Ninja Browser?
Ninja Browser is a web browser based on Chromium. During our inspection, we found that it promotes a questionable search engine. Thus, Ninja Browser can expose users to unreliable websites and various online threats. Users should avoid installing Ninja Browser and eliminate the app if it is already installed.
Ninja Browser overview
Ninja Browser is promoted as an all-in-one downloader designed for browsing, downloading, and protecting user privacy. It offers an ad-free experience and emphasizes private browsing to keep users' activities secure.
Our analysis has shown that Ninja Browser forces users to use potterfun.com as their search engine. If a search query is entered using the address (URL) bar, Ninja Browser redirects users to potterfun.com via x-finder.pro and search-more.com. If it is done using Ninja Browser's search box, the app redirects users to potterfun.com via ai-search.org and search-more.com.
Potterfun.com is a questionable search engine that can present misleading results and unwanted advertisements. Using it can expose users to various scams (e.g., technical support scams, fake giveaways, and lotteries), phishing websites, unwanted and malicious applications, and other threats.
Also, Ninja Browser might be designed to gather various information, including location, browsing history, device information, login credentials, the websites users visit, financial information, and more. The app may put users at risk of privacy and security issues.
Overall, the websites associated with Ninja Browser are not reliable, and the app itself may pose certain risks. Therefore, users should avoid using it and consider removing it if the app is already installed on the operating system.
| Name | Ninja Browser questionable browser |
| Threat Type | Unwanted program, unwanted application |
| Functionality | Browser and downloader |
| Detection Names (Installer) | Bkav Pro (W32.AIDetectMalware), MaxSecure (Trojan.Malware.300983.susgen), SkyHigh (BehavesLike.Win32.Dropper.tc), Trapmine (Suspicious.low.ml.score), Full List Of Detections (VirusTotal) |
| Detection Names (Application) | Trapmine (Suspicious.low.ml.score), Full List Of Detections (VirusTotal) |
| Detection Names (x-finder.pro) | alphaMountain.ai (Suspicious), CRDF (Malicious), Webroot (Malicious), Full List Of Detections (VirusTotal) |
| Detection Names (ai-search.org) | N/A (VirusTotal) |
| Detection Names (search-more.com) | N/A (VirusTotal) |
| Detection Names (potterfun.com ) | SOCRadar (Malware), Full List Of Detections (VirusTotal) |
| Symptoms | A program that you do not recall installing suddenly appeared on your computer. A new application is performing computer scans and displays warning messages about 'found issues'. Asks for payment to eliminate the supposedly found errors. |
| Distribution Methods | Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers. |
| Damage | Monetary loss (unnecessary purchase of fake software), unwanted warning pop-ups, slow computer performance. |
| Malware Removal (Windows) | To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner. |
Conclusion
In conclusion, while Ninja Browser is promoted as a tool for secure, ad-free, and private browsing, our analysis reveals certain concerns. The app forces users to use a questionable search engine (potterfun.com), which can lead to misleading results, unwanted ads, and potential exposure to scams and malicious websites.
Additionally, Ninja Browser may collect various personal information, raising privacy and security risks. Given these issues, it is advisable for users to avoid Ninja Browser to protect their privacy and security.
How did unwanted applications install on my computer?
Users can be deceived into downloading unwanted apps through misleading ads, notifications from suspicious websites, or alerts from potentially harmful sites. Downloading from peer-to-peer platforms, torrents, and similar sources can also lead to the installation of unwanted apps.
Additionally, unwanted apps are often bundled with free or questionable software, and users may unknowingly install them by rushing through the installation process and leaving default settings or options like "Advanced" and "Custom" unchanged.
How to avoid installation of unwanted applications?
Download apps only from trusted sources like official app stores (Google Play, Apple App Store) or websites. Avoid third-party stores, downloaders, suspicious sites, or peer-to-peer networks. Before downloading, check the app’s ratings and user reviews.
When installing, carefully examine prompts for additional offers and uncheck any unwanted options. Do not click pop-ups, ads, buttons, and links on untrustworthy websites. Use reliable antivirus or anti-malware software and perform regular scans. If your computer is already infected with rogue apps, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
The appearance of a redirect chain (x-finder.pro, search-more.com, potterfun.com) when a search query is entered using the address bar (GIF):
The appearance of a redirect chain (ai-search.org, search-more.com, potterfun.com) when a search query is entered using a search box (GIF):
Installation setup of Ninja Browser application:
App description section:
Website promoting Ninja Browser application:
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 Ninja Browser?
- STEP 1. Uninstall deceptive applications using Control Panel.
- STEP 2. Remove rogue extensions from Google Chrome.
- STEP 3. Remove unwanted plug-ins from Mozilla Firefox.
- STEP 4. Remove rogue extensions from Safari.
- STEP 5. Remove rogue plug-ins from Microsoft Edge.
Removal of unwanted applications:
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 "Ninja Browser" and other suspicious applications, select these entries and click "Uninstall" or "Remove".
After uninstalling the potentially unwanted application, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.
Remove rogue extensions from Internet browsers:
At time of research, Ninja Browser did not install any unwanted browser extensions, however, some unwanted applications can be installed together with adware and browser hijackers. If you experience unwanted ads or redirects when browsing the Internet, continue with the removal guide below.
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 "Extensions" and click "Manage Extensions". Locate all recently-installed suspicious extensions, select these entries and click "Remove".
Optional method:
If you continue to have problems with removal of the ninja browser questionable 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 plugins from Mozilla Firefox:
Click the Firefox menu 
(at the top right corner of the main window), select "Add-ons and themes". Click "Extensions", in the opened window locate all recently-installed suspicious extensions, click on the three dots and then click "Remove".
Optional method:
Computer users who have problems with ninja browser questionable 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 ninja browser questionable 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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Frequently Asked Questions (FAQ)
What is the purpose of an unwanted application?
Unwanted applications are usually designed to profit their developers through intrusive advertisements, harvesting user data, offering fake or unnecessary services, or similar tactics. Ninja Browser forces users to use a dubious search engine (potterfun.com).
Is Ninja Browser unwanted application legal?
Unwanted apps are often considered legal because their End User License Agreements (EULAs) disclose practices like data collection or displaying ads. However, users frequently overlook or misinterpret these terms, leading to unexpected and undesired experiences.
Is having Ninja Browser installed on my computer dangerous?
The results provided by the search engine promoted through Ninja Browser can expose users to various scams and other online threats. Thus, Ninja Browser can pose security and privacy risks.
Will Combo Cleaner help me remove Ninja Browser unwanted application?
Yes, Combo Cleaner can scan your computer and effectively remove unwanted apps. Manual removal might leave behind residual files or components, which could continue to impact system performance or functionality.
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