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If your browser keeps switching back to Yahoo after you select Google, Bing, DuckDuckGo, or another search provider, changing the default once usually will not solve the problem. A browser extension, bundled application, or other unwanted software may be rewriting the setting.
Use this order: identify the browser, remove suspicious extensions, uninstall unfamiliar programs, reset the browser if necessary, and then set your preferred search engine again. Do not assume Yahoo itself installed malware; the redirect is often caused by software that uses Yahoo as its results page.
First, check whether the search engine is actually changing
Some browsers let you choose a default search engine, while an extension can add a separate search shortcut or redirect searches through another website. Test the behavior before changing anything:
- Open a new browser window.
- Type a search directly into the address bar, not a search box on a webpage.
- Note the first URL that appears before the results load. A redirect through an unfamiliar domain is more suspicious than a direct Yahoo URL.
- Repeat the test in a private or Incognito window. If the problem disappears there, an extension is a likely cause.
If Yahoo is simply selected as the browser’s default and there are no redirects, use the relevant instructions below. If it returns after a restart, or comes back after you choose another provider, continue with the cleanup steps.
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Change the default search engine
Google Chrome
- Select More (the three dots) in the upper-right corner.
- Open Settings.
- Select Search engine.
- Under Search engine, select Change.
- Choose your preferred provider.
This changes the provider used for searches from Chrome’s address bar. It will not stop an extension or installed program from changing the setting again.
Microsoft Edge
Edge may not list a provider until you have used it for an address-bar search. The site must support the OpenSearch standard for Edge to add it.
- Perform a search from the Edge address bar using the provider you want.
- Select Settings and more (the three dots), then Settings.
- Open Privacy, search, and services.
- Select Search and connected services.
- Open Address bar and search.
- Choose the provider under Search engine used in the address bar.
Mozilla Firefox
- Select the menu button, then Settings.
- Select Search.
- Choose a provider from the Default search engine drop-down.
Firefox uses this choice for searches from both the address bar and the separate search bar. If Firefox displays a warning offering Change Search Engine or Don’t change, review the setting rather than accepting an unexpected change.
Remove the extension responsible for the Yahoo redirect
A search-hijacking extension may change the default provider every time the browser starts. Removing Yahoo from a list without removing the extension often gives only a temporary fix.
Chrome
- Select More → Extensions → Manage extensions.
- Review extensions you do not recognize, especially recently installed search tools, coupon add-ons, PDF tools, toolbars, and “new tab” extensions.
- Select Remove for a suspicious extension.
- Restart Chrome and test an address-bar search.
If you are unsure about an extension, disable it first rather than removing it. Turn it off, restart the browser, and search again. Do not re-enable an extension merely because it has many users; check that its publisher and purpose match what you intended to install.
Firefox
- Select the menu button → Settings → Search.
- Review the search-engine list and the extensions installed in Firefox.
- Open the Add-ons Manager and disable or remove the extension that added the unwanted provider.
Firefox can hide a search engine without deleting it. Turning off its toggle or check mark removes it from the address-bar choices, but it does not remove the underlying engine. A provider supplied by an extension must be removed through the Add-ons Manager; it cannot always be removed from the normal search-engine list.
Firefox may also automatically switch to the country’s default search engine when it detects a likely hijack. Detection is not perfect. The previous provider should remain available in the selection menu, so choose your preferred engine again after removing the cause.
Uninstall the unwanted program from Windows or macOS
If the setting returns after you remove an extension, an operating-system application may be restoring it. This can happen after installing free software, a download manager, a fake security tool, or an installer that bundled additional programs.
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- Select Start → Settings.
- Open Apps → Installed apps.
- Sort the list by installation date if possible.
- Find an unfamiliar application installed around the time the redirects began.
- Select its menu button, choose Uninstall, and follow the prompts.
- Restart Windows and test the browser again.
Do not uninstall a program solely because its name is unfamiliar if it is a Microsoft component, hardware driver, or software you know you need. Search the publisher and application name separately before removing it.
macOS
- Open Finder.
- Select Applications in the left sidebar.
- Find an unrecognized application installed before the problem started.
- Right-click it and select Move to Trash.
- Right-click the Trash and select Empty Trash.
If the application refuses to close or remove, restart the Mac and try again. Do not run an unfamiliar “cleaner” downloaded from a pop-up; such tools are a common source of unwanted browser changes.
Reset Chrome if the setting keeps returning
After removing suspicious software and extensions, reset Chrome’s browser settings:
- Select More → Settings.
- Select Reset settings.
- Choose Restore settings to their original defaults.
- Select Reset settings to confirm.
Chrome’s reset changes the default search engine, homepage and startup pages, new-tab page, pinned tabs, content settings, cookies and site data, extensions, and themes. It does not delete saved bookmarks or passwords. It also is not a complete reset: settings such as fonts and accessibility options are not removed.
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Afterward, some extensions may be disabled. If you need one, open More → Extensions → Manage extensions, and turn on only extensions you trust.
Chrome can check settings at launch and restore changes made by unwanted programs. If it reports that the search engine was reset, select Got it or Learn more on the results page. For detailed settings information, enter this exact address in Chrome’s address bar:
chrome://settingsWhat to do if Yahoo still appears
| Symptom | Most likely cause | Next action |
|---|---|---|
| Yahoo is selected in the browser settings | Normal default-search setting | Choose another provider in Search settings. |
| The provider changes after restarting the browser | Extension or installed program | Disable extensions and uninstall recent unwanted software. |
| The address bar briefly visits an unfamiliar domain | Search hijacker or redirect rule | Remove suspicious extensions and scan the computer with trusted security software. |
| The problem occurs only in one browser | That browser’s profile, extension, or settings | Reset that browser after removing the suspected cause. |
| The problem affects several browsers | Operating-system software or malware | Uninstall the responsible application and run a full security scan. |
Also check the browser’s homepage and startup pages. A search hijacker may change more than the default provider. Unwanted pop-ups, unfamiliar extensions, new toolbars, slower browsing, and redirects to pages you did not request are additional warning signs.
Keep your operating system, browser, and security software updated. Review installation screens when downloading free software, and use custom or advanced installation options when available so bundled offers can be declined.
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FAQ
Is Yahoo itself a virus?
No. Yahoo is a legitimate search service. The problem is usually that an extension, bundled application, or other unwanted software selected Yahoo or redirected searches to it without your intended choice.
Why does removing Yahoo from the search-engine list not fix the problem?
An extension or installed program may reapply the setting when the browser starts. Remove the software changing the setting, then choose a default search engine again.
Will resetting Chrome delete my bookmarks and passwords?
No. Chrome’s settings reset does not delete saved bookmarks or passwords. It does reset items such as the default search engine, startup pages, extensions, themes, cookies, and site settings.
Why does Firefox keep choosing another search engine?
Firefox can detect a likely search hijack and automatically restore the country’s default provider. An extension may also control the search engine. Check Settings → Search and remove the responsible extension through the Add-ons Manager.
The Bottom Line
Set your preferred search engine first, but do not stop there if Yahoo returns. Remove suspicious browser extensions, uninstall recently added programs from Windows or macOS, and reset Chrome when necessary. If searches still redirect—especially through unfamiliar domains—run a full scan with trusted security software and investigate other unwanted applications on the computer.
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