Chromium Shield browser ads: what it is and how to remove it
Chromium Shield browser is an application that can be used instead of Google Chrome, Mozilla Firefox, Safari, MS Edge, or another web browser. It is based on the open-source project, where any developers can take the official code and modify it in order to make an application with specific traits.
Facts checked October 7, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.
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Chromium Shield browser ads: summary
| Distribution | Software bundles, official website, third-party websites, deceptive ads, fake Flash Player updates |
|---|---|
| Name | Chromium Shield browser |
| Type | Adware, potentially unwanted program |
| Alleged functionality | Privacy-focused web browser that can shield from online tracking and allegedly provide anonymity |
| Symptoms | Browser is used to open links – it is set as your main web tool; intrusive advertisements are shown on many visited sites |
| Dangers | Redirects to malicious websites can result in unwanted site notifications, personal information disclosure to unknown parties (cybercriminals), monetary losses, installation of other potentially unwanted programs/malware |
| Removal | Scan the PC with security software to find and remove the malware and anything installed with it. Fortect scans Windows for malware and repairs the system files and settings it damaged. Remove it nowTo use the full-featured product, you have to purchase a license for Fortect. The scan is free. |
Show 6 more facts
| Detection names | No Microsoft detection name is known |
|---|---|
| Damage | Not recorded in the old report |
| Evidence | 4 write-ups by security sites; details still limited |
| Program | Chromium Shield browser |
| First seen | 11 April 2021 |
| Facts checked | 7 October 2026 |
Is Chromium Shield browser ads dangerous?
From our report of Apr 2021 · not reviewed since
Chromium Shield browser - a potentially unwanted program that knows a lot about you
Chromium Shield browser is an application that can be used instead of Google Chrome, Mozilla Firefox, Safari, MS Edge, or another web browser.
It is based on the open-source project, where any developers can take the official code and modify it in order to make an application with specific traits. This particular program boasts its ability to provide anonymity while browsing by providing an allegedly free VPN, ad blocking, reduced tracking, and much more.
Adware application hides behind an agenda of "anonymous" browsing, all while collecting all types of information about its users. Additionally, the browser engages in data sharing with third parties and delivers banners, coupons, deals, discounts, promotional offers, and other intrusive ad campaigns with the help of a virtual layer used for ad injection.
Over the past few years, users got growingly concerned about their privacy:
- data breaches leak millions of records of information
- ransomware developers behind Maze
- similar strains threaten to publish stolen sensitive data
Without a doubt, privacy becomes one of the main priorities of many individuals that use the internet every day, and Adware is offered as one of the tools that can help them with that:
Allegedly, Chromium Shield provides a completely free VPN and other features for the above-mentioned goals to be reached easily. However, the developers are very deceptive, as by no means users who install the app will be exempt from data tracking.
VPNs, such as are not free, but they do retain the strict no-log policy, which means that VPN developers or their affiliates are not there to track you but rather provide true anonymity. Free VPNs run a business model that relies on data tracking and advertisements, which, essentially, defeats the purpose of a VPN.
In fact, just looking at the Privacy policy, it becomes clear that the app developers collect all types of information about you, as long as you have the app installed. Here are some examples:
There are plenty of browsers created in a similar way, although many of Chromium virus variants use the open-source code to hijack users' searchers and monetize on their clicks, all while collecting a substantial amount of user data.
Examples of other deceptive apps include BrowserAir, Chedot, Fusion Browser, eFast, and many others. Nonetheless, Chromium can also be used for a good cause, and several privacy-focused browsers were released over the years (including the new MS Edge).
Since potentially unwanted programs often travel within software bundles, you might have found this browser as your default seemingly out of nowhere. If that is the case, remove adware without thinking twice - it is only there to track you, deliver you ads, and straight out lie about the anonymity promise.
Adware removal can be easily performed by accessing the installed apps section on Windows or macOS computers.
- IP address
- Links clicked and sites visited
- Applications installed
- Technical device info
- E-mail (it can also be shared with affiliates to send you "promotional offers," aka. spam;
- Other personal details if linked with Facebook or other social media account (name, gender, profile picture, etc.).
From our report of Apr 2021 · not reviewed since
Choose browsers that are truly focused on your privacy
Chromium project is great - it allows developers to modify the browser code and provide users a unique experience.
Without a doubt, some apps simply operate a model of data gathering and ad delivery (and many users are fine with that), but apps that pretend to secure one's privacy but instead track users are just plain out scams.
It is not a secret that Chrome by Google gathers a large amount of data for marketing purposes, and many users are already turning away from the web browser precisely due to this reason.
However, if you do not care about this, you should rather choose Chrome than a third-party app that pretends that it does not gather any logs about you. In fact, on many occasions, such programs collect much more information than even Chrome does.
If you do care about your privacy, equip your machine with a browser that focuses on your online anonymity without hidden features - MS Edge, Brave, and similar are good examples of apps that hold the opt-in rather than opt-out policy, which means that you need to go to settings and change the preferences in order to be tracked by websites and other parties.
Keep in mind that many Chromium-based browsers are considered to be potentially unwanted programs and are often distributed via software bundles. To avoid unintentional installation of PUPs, you should always prefer downloading apps from official sources rather than third-parties.
If you really have to, always pick Advanced/Custom settings instead of Recommended ones during the installation and remove ticks from all the checkboxes that would otherwise result in the installation of optional apps.
From our report of Apr 2021 · not reviewed since
More from our earlier report on Chromium Shield browser
- Malware or adware infections can diminish the performance of your computer or cause serious stability issues.
- Chromium Shield is an open-source desktop browser derived from Chrome.
- Its main purpose is to provide you with the fastest, most efficient, secure and private browsing experience.
- With Chromium Shield's many private conscious features you are guaranteed full anonymity and freedom when searching the web.
How to remove Chromium Shield browser ads
How to remove the Chromium Shield browser extension
Do the browser steps in every browser and profile on the PC, then check Windows for the program that installed the extension.
Step 1: Remove extensions you did not add
In Chrome open
chrome://extensions, in Edgeedge://extensions, and in Firefox the menu > Extensions and themes.Remove every extension you do not remember adding, especially search, new tab, coupon, PDF, weather or video downloader add-ons. Check every browser and every profile, because each keeps its own list.
If an extension has no Remove button or comes back, a browser policy holds it (see "Managed by your organization" in the procedure below). The pages are the same on Windows 11 and Windows 10.
Chrome on Windows 11: More > Extensions > Manage extensions. Full procedure with screenshots: Remove a browser extension
Step 2: Uninstall Chromium Shield browser
Chromium Shield browser is removed like any other program, from the list of installed apps. In Windows 11 that is Settings > Apps > Installed apps, in Windows 10 Settings > Apps > Apps & features, and in both you can also use Control Panel > Programs and Features.
Select Chromium Shield browser, click Uninstall and follow the uninstaller to the end. Then look at the entries just above and below it when the list is sorted by date: bundled programs install at the same minute.
Full procedure with screenshots: Uninstall a program or app in Windows On uGetFix
Step 3: Reset the browser
A reset removes what the steps above could miss:
- changed start pages
- site permissions
- hidden settings
In Chrome open Settings > Reset settings > Restore settings to their original defaults; in Edge Settings > Reset settings; in Firefox Help > More troubleshooting information > Refresh Firefox.
Tip: Bookmarks and saved passwords stay, while extensions are turned off and the search engine and start page return to the defaults.
Reset every browser on the PC, including Edge, which Windows 11 and Windows 10 always have.
Chrome on Windows 11: Settings > Reset settings. Full procedure with screenshots: Reset a browser and fix a hijacked search engine
Step 4: Scan the PC, then run the offline scan
A scan finds the parts of Chromium Shield browser that the manual steps cannot see. In Windows Security > Virus & threat protection > Scan options, start a Full scan and quarantine what it reports.
Follow it with Microsoft Defender Antivirus (offline scan) > Scan now, which restarts the PC and checks the disk while Windows and the malware are not running.
It takes about 15 minutes and works the same in Windows 11 and Windows 10. If either scan finds something, run the full scan again after removal until it comes back clean.
Windows 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
Instructions for each browser and system
The detailed steps for every browser and system this guide covers. Open the one you use.
Uninstall from Windows
Uninstall Chromium Shield from Windows OS:
Uninstall from Windows 10/8:
- Type Control Panel into the Windows search box and open the result.
- Under Programs, select Uninstall a program.
Uninstall from Windows 7/XP:
- Click on Windows Start > Control Panel (Windows XP users should click on Add/Remove Programs).
- In Control Panel, select Programs > Uninstall a program.
Remove the unwanted program:
- In the Programs and Features window, look for any recently installed suspicious entries, select them, and click Uninstall.
- If User Account Control appears, click Yes to confirm, then complete the removal.
Delete from macOS
If you want to eliminate an app from your Mac, follow these steps:
Remove the unwanted application:
- From the menu bar, select Go > Applications.
- In the Applications folder, look for any suspicious entries, then drag them to Trash (or right-click and pick Move to Trash).
Delete leftover files and folders:
- Select Go > Go to Folder.
- Enter /Library/Application Support and remove any suspicious folders related to the unwanted program.
- Repeat the same check in the /Library/LaunchAgents and /Library/LaunchDaemons folders, deleting any suspicious entries.
- Finally, empty the Trash to permanently remove the leftovers.
Do not let government spy on you
The government has many issues in regards to tracking users' data and spying on citizens, so you should take this into consideration and learn more about shady information gathering practices.
Avoid any unwanted government tracking or spying by going totally anonymous on the internet.
You can choose a different location when you go online and access any material you want without particular content restrictions. You can easily enjoy internet connection without any risks of being hacked by using VPN.
Control the information that can be accessed by government any other unwanted party and surf online without being spied on. Even if you are not involved in illegal activities or trust your selection of services, platforms, be suspicious for your own security and take precautionary measures by using the VPN service.
Backup files for the later use, in case of the malware attack
Computer users can suffer from data losses due to cyber infections or their own faulty doings.
Ransomware can encrypt and hold files hostage, while unforeseen power cuts might cause a loss of important documents. If you have proper up-to-date backups, you can easily recover after such an incident and get back to work. It is also equally important to update backups on a regular basis so that the newest information remains intact - you can set this process to be performed automatically.
When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware strikes out of nowhere. Use for the data restoration process.
From our report of Apr 2021 · not reviewed since
Uninstall Chromium Shield browser in several easy steps
If your default web browser, search engine, or homepage changed seemingly out of nowhere, it is a clear sign that your browser has been hijacked.
Although it is not a virus, but rather a potentially unwanted program, it will set itself as your default browser as soon as it is installed intentionally or via third-parties.
If you want to remove adware from your Windows or Mac computer, you have to uninstall it like any other program - we provide instructions for that below. In some cases, security applications that detect the app as adware can do this job for you automatically.
After removal, you should perform a full system scan with , , or another anti-malware software to ensure that your computer is clear from other (invisible) threats. If something was indeed found by the security app, you could also employ to perform other checks, such as damaged registry entries.
Questions about Chromium Shield browser ads
What is Chromium Shield browser and why is it on my PC?
Chromium Shield browser is a program that was installed on the PC, most likely together with something else you downloaded. Free software sites and many installers add extra programs on setup pages with pre-ticked boxes, so the extra install looks like your choice even though nobody read the page.
Check the install date in Settings, Apps, Installed apps: the program you installed that day is the probable carrier. If you do not need Chromium Shield browser, uninstall it. If it belongs to your hardware or to a program you use, search its exact name and publisher first, because drivers and their tools can have unfamiliar names.
How do I stop programs like Chromium Shield browser from being installed again?
Most unwanted programs arrive through installers, so the fix is in how you install software. Download programs from their official sites or the Microsoft Store, not from download portals or ads above search results. During setup, choose Custom or Advanced installation and untick every extra offer, including browsers, toolbars and optimizers.
Decline update prompts that appear inside other programs unless you know them. In Windows Security, turn on reputation-based protection and potentially unwanted app blocking. These steps would most likely have stopped Chromium Shield browser before it reached the app list.
I clicked on one of the ads. Am I infected?
Probably not. Clicking an ad usually only opens a page, and a page cannot install programs on an up-to-date Windows PC without your help.
You are at risk only if you then downloaded and ran a file, allowed notifications, entered card or login details, or called a phone number shown on the page. Delete any download and run a full and offline scan.
Change passwords you typed, from a clean device. Call your bank if you gave card details. If you called a number or allowed remote access, see the next question.
Can adware slow down my PC?
Yes. Adware runs in the background, loads ad scripts, opens extra tabs and contacts its servers, all of which use processor time, memory and bandwidth. Ad-heavy extensions also slow down every page, because they inspect and change it before you see it.
The effect is strongest on older PCs and when several adware programs arrived together. After removal, restart the PC and check Task Manager for anything still using a lot of resources that you do not recognise. Speed usually returns to normal once the ads stop.
Does adware steal passwords?
Ordinary adware is built to show ads, not to steal logins, and most of it never touches saved passwords. The line is blurry, though. Extensions that can read every page could capture what you type, and adware ads sometimes lead to phishing pages that ask for passwords directly.
If you entered credentials on a page reached through an ad, change that password from a clean device and turn on two-step verification. Otherwise, removing adware extension and clearing cookies is usually enough.
Why didn't my antivirus catch Chromium Shield browser?
Many security products do not block adware or notification sites by default, because users often agreed to them, even through a misleading prompt. Notification spam installs nothing at all, so there is no file to detect.
In Windows 11 you can make Microsoft Defender block potentially unwanted apps: open Windows Security > App & browser control > Reputation-based protection settings and turn on Potentially unwanted app blocking. If notifications caused the pop-ups, no scanner will report them; the fix is in the browser's site settings.
An ad showed a phone number and I called it. What now?
The number belongs to scammers, not to Microsoft or an antivirus company. If you only talked, hang up and do not call back. If you let them connect to the PC, disconnect it from the internet, uninstall the remote access program they used, such as AnyDesk, TeamViewer, ScreenConnect or UltraViewer, and run a full and offline scan.
If you paid or gave bank details, call your bank at once on the number printed on your card. Change any passwords you typed while they were connected, and report the call.
How did Chromium Shield browser get on my computer?
Our report lists the distribution as software bundles, official website, third-party websites, deceptive ads, fake Flash Player updates. Software of this kind often comes bundled with free programs, fake updates or downloads from unofficial sites.
It can also arrive through a browser extension or a notification you allowed on a spam page. Think back to what you installed or allowed just before the first ad or redirect appeared.
Will Fortect remove Chromium Shield browser?
Fortect scans Windows for malware and unwanted programs and repairs the system files and settings they change, and its free scan shows what it finds on your PC before you decide anything.
For Chromium Shield browser, follow the plan above as well: the browser steps take back permissions and settings that no scanner treats as a threat, and uninstalling the program that brought it removes the source.
Run Microsoft Defender's full scan and, if anything was found, its offline scan as a second opinion. If the symptoms are gone after the plan and both scans are clean, there is nothing more to do.
Sources
- ACT Technologies: Data Breach is Running Rampant (read October 7, 2026)
- Lifehacker: Yes, You Should Quit Using Google Chrome (read October 7, 2026)
- Virus Total: Setup.exe (read October 7, 2026)
- Google Chrome Help: Use notifications to get alerts (no longer online) (read October 7, 2026)
- FTC: How to recognize, remove and avoid malware (read October 7, 2026)