Chrome Blocks New Tab Hijacker Extensions: How to Clean Yours

You open Chrome, click a new tab, and instead of the familiar blank page or your chosen start page, you land on a search engine you never installed. Maybe the search bar sends your queries through a strange redirect. Maybe ads appear in the corners. Maybe the homepage changed three times last week and every attempt to reset it quietly failed. If that sounds familiar, you have likely met a new tab hijacker extension, and you are far from alone. Browser hijackers are one of the most common complaints people raise about desktop browsers, and they tend to arrive through the same door: a free utility, a "PDF converter," a video downloader, or a coupon tool that asks for permission to "read and change data on all websites" and gets it because nobody reads that dialog. Once installed, the extension can override your new tab page, rewrite your search queries, inject affiliate links, and track which pages you visit. In a bad case, it can also expose you to phishing pages and malicious downloads. Google has been tightening its extension rules for several years, and Chrome now blocks or disables extensions that violate its policies more aggressively than it used to. That helps, but it does not replace checking your own browser. Extensions that were clean when published can be sold to new owners who push changes later, and some hijackers slip through review long enough to reach a few hundred thousand installs before removal. This guide explains what new tab hijackers do, how to audit Chrome in about ten minutes, how to remove the stubborn ones, and how to keep your browser from getting taken over again. You will get a step-by-step walkthrough, a comparison of the cleanup approaches people actually use, and a short list of habits that prevent most of the problem. If you are also reviewing your broader security setup, our guide on open-source security tools in 2026 covers verification habits that apply well beyond browsers.

Key Takeaways

A new tab hijacker overrides your new tab page, search engine, or homepage, usually to generate ad revenue or steer searches through tracking redirects.

Most hijackers get installed by the user through bundled free software or overly broad extension permissions.

Check chrome://extensions first, then review permissions, install source, and recent update history for every extension you do not recognize.

Remove suspicious extensions, then reset your search engine, new tab page, and startup settings, since some hijackers leave residue behind.

Run Chrome's built-in cleanup tool and a second opinion scan if the problem persists, and check for unknown profiles or policies.

Prevent reinfection by installing only from the Chrome Web Store, reviewing permissions on every install, and auditing extensions quarterly.

What Is a New Tab Hijacker Extension?

A new tab hijacker extension is a browser add-on that replaces the page you see when you open a new tab, and often changes your default search engine and homepage at the same time. Its main goal is usually revenue: every search or new tab view becomes an opportunity to show ads, collect a commission on a shopping link, or log your activity for resale.

These extensions are a subset of what security researchers call browser hijackers, which also include toolbars that inject themselves into every page and add-ons that quietly change proxy or DNS settings. What makes the new tab variety especially annoying is that it is visible every time you open a tab, so you notice it constantly.

Common behaviors to watch for

Your new tab page shows a search box or "news" feed you did not choose.
Search queries from the address bar go to an unfamiliar search engine.
Your homepage or startup pages reset after you change them.
Links you click show a brief redirect page before reaching the destination.
The extension has permissions like "Read and change all your data on all websites" with no obvious reason.

Hijacker versus legitimate customization

Not every change to your new tab is malicious. Productivity dashboards, bookmark managers, and wallpaper extensions also replace the new tab page, and they are legitimate when they come from known developers and explain their permissions. The difference is consent and transparency. A legitimate extension tells you what it changes and lets you undo it easily. A hijacker hides the setting, makes it reset, or buries the option behind confusing menus.

How Do Hijackers Get Installed in the First Place?

Almost always, the user installs them, though not knowingly. The three most common routes are:

Bundled installers. Free converters, download managers, and media players often include an optional checkbox to install a "recommended" browser add-on. If you click through quickly, you accept it.
Fake or cloned extensions. A listing with a near-identical name to a popular tool, sometimes with fake reviews, appears in the store or on third-party sites.
Acquired extensions. A legitimate extension with a loyal user base is sold to a new owner who pushes an update that adds tracking or redirects. Users who installed it years ago are caught off guard.

Your defense against all three is similar: know what you installed, read what it asks for, and notice when behavior changes.

How Do I Check Chrome for a New Tab Hijacker?

Start with a full audit before removing anything. Deleting extensions blindly can cost you a password manager or a work tool, and you want a list of what is actually there. Set aside about ten minutes.

Step-by-step: audit your extensions

Open Chrome and type chrome://extensions in the address bar, then press Enter.
Turn on Developer mode in the top-right corner. This reveals each extension's ID and install details.
Write down every extension you do not recognize. Use a simple list: name, ID, and the reason you think you installed it.
For each unfamiliar extension, click Details and review the Permissions section. Flag anything that says "Read and change all your data on all websites," "Manage your apps," or "Change your privacy-related settings."
Check the Site access setting. If it says "On all sites," consider whether that makes sense for what the extension does.
Search the extension name plus the word "review" in a search engine. Look for complaints about redirects, new tab changes, or unexpected ads.
Check the extension's listing in the Chrome Web Store for the developer name, number of users, and the date of the latest update. A recent update that adds broad permissions is a warning sign.

Worked example

Say you have 14 extensions installed in Chrome. You recognize 9 of them: a password manager, an ad blocker, two developer tools, a grammar checker, a screenshot tool, a tab manager, a dark mode extension, and a PDF viewer. You do not recognize 5. Of those 5, two have "Read and change all your data on all websites" permissions, one is named something similar to a popular ad blocker but with a different developer, one was last updated 11 months ago with no reviews, and one has only 2,300 users despite a flashy name. Those five become your removal candidates. The remaining nine stay until you confirm the new tab page is not coming from one of them.

If you are not sure which extension controls your new tab, a quick test helps. Disable extensions in batches of three or four, reload a new tab after each batch, and watch for the hijacked page disappearing. This isolates the culprit in a few minutes even when the extension name is misleading.

How Do I Remove a New Tab Hijacker Completely?

Removing the extension is only the first step. Many hijackers change settings that outlive the extension itself, such as your default search engine, startup pages, and sometimes a custom new tab URL. Clean those up too.

Step-by-step: full removal

Go to chrome://extensions and click Remove on each suspicious extension. Confirm the removal.
Go to chrome://settings/search and confirm your default search engine is one you chose. If not, change it to Google, Bing, DuckDuckGo, or whichever you prefer, then remove the unfamiliar entry from the list of search engines.
Go to chrome://settings/onStartup and select either "Open the New Tab page" or "Continue where you left off," depending on your preference. Remove any unknown startup URLs.
Go to chrome://settings/appearance and check the "Show home button" setting. If a home URL is set that you did not choose, correct it.
Go to chrome://settings/reset and use Restore settings to their original defaults if the problem persists. This resets search engines, startup pages, and new tab pages, and disables extensions, but it keeps your bookmarks, history, and saved passwords. Chrome warns you before proceeding.
Restart Chrome and open a new tab. If the hijacked page returns, the cause is outside the browser's extension list, so continue to the checks below.

Checking for policies and profiles

Some hijackers install managed policies or a second Chrome profile. Check both:

Type chrome://policy to see whether any policy is forcing settings. Unfamiliar entries, especially for homepage or search provider, are a red flag. On a personal machine, you should normally see no policies at all.
Click your profile icon in Chrome's top-right corner to see whether there is an extra profile you do not recognize. Remove any unfamiliar profile after confirming it does not contain data you need.

Checking the operating system

If resetting Chrome does not fix things, the problem may sit in your OS. Look for unfamiliar startup entries, scheduled tasks, or installed programs that appeared around the time the hijacking started. On Windows, check Task Manager's Startup tab and Installed Apps. On macOS, check Login Items and Applications. If you have a recent clean backup, comparing it against your current system can pinpoint what changed. Our overview of Windows backup software explains which free tools restore system state reliably, which matters if you need a clean rollback point.

Which Cleanup Method Should You Use?

Not every cleanup approach suits every situation. The table below compares five common options on criteria that matter in practice: time required, technical skill needed, how thoroughly it removes residue, cost, and whether it keeps your data intact.

Method	Time Required	Skill Level	Removes Residue	Cost	Keeps Your Data
Manual extension removal only	5 minutes	Low	Partial	Free	Yes
Manual removal plus settings reset	15 minutes	Low	Good	Free	Yes
Chrome built-in cleanup tool	Cover image: Innovate Maryland Emerging Technology Center by MDGovpics, licensed under BY 2.0 via Openverse.