If your browser suddenly opens an unfamiliar page or uses a different search engine, you don't necessarily have a virus. The change may come from an extension, an extra program bundled with a download, a browser update, or a setting that was changed accidentally. Restore your preferred settings first, then check what caused the change if it returns.
Step 1: Restore your homepage and search settings
The exact controls differ by browser. These steps cover the usual settings for the homepage, startup page, and default search engine.
Google Chrome
- Open Settings > Appearance. Turn on Show home button if you use it, then enter the address you want for that button.
- Open Settings > On startup. Choose your preferred startup option and remove any unfamiliar page listed under Open a specific page or set of pages.
- Open Settings > Search engine and select the search engine you want to use.
Microsoft Edge
Open Settings > Start, home, and new tabs. Review what opens when Edge starts, the Home button page, and any unfamiliar startup addresses. Then check the search engine setting if searches are also being redirected.
Mozilla Firefox
Open Settings > Home. Under Homepage and new windows, choose Firefox Home or enter your preferred address. Open Settings > Search to check the default search engine.
Safari on Mac
Open Safari > Settings > General and change the Homepage field. Then open Safari > Settings > Search to review the search engine.
Menu labels can vary slightly by browser version. If you cannot find a setting, use the browser's Settings search where available rather than changing unrelated options.
Step 2: Check extensions before resetting the browser
If the homepage changes back after you fix it, an extension may be overriding your choice. This is especially worth checking if the problem began after installing an add-on or free software.
- Open the browser's extension management page. In Chrome, enter
chrome://extensionsin the address bar; in Edge, useedge://extensions. In Firefox, open the menu and choose Add-ons and themes. In Safari, open Safari > Settings > Extensions. - Look for extensions you don't recognize, don't remember installing, or no longer need.
- If you're unsure about an extension, disable it first and restart the browser. If the unwanted change stops, remove the extension. Avoid removing a work or school extension without checking with your administrator.
Don't judge an extension by its name alone. Check its publisher and whether you intentionally installed it. If several unfamiliar extensions appeared together, continue with the unwanted-software checks below.
Step 3: Check whether the browser is managed
Chrome may display Managed by your organization in its menu or settings. This is normal on many work or school devices, where an administrator may control browser settings. Ask your IT team before trying to remove those controls.
On a personal computer, an unexpected management message deserves investigation, particularly if your homepage or search engine is locked. It can be caused by software that added browser policies, but the message alone does not prove that the computer is infected. Check recently installed apps and run a security scan before attempting advanced policy changes.
On a Mac, you can also open System Settings > General > Device Management or look for Profiles if that option appears in your version of macOS. A profile may be legitimate, especially on a managed device. Investigate unfamiliar profiles rather than deleting one blindly.
Step 4: Inspect the browser shortcut on Windows
Some unwanted programs alter a browser shortcut so it opens a particular website when launched. To check:
- Right-click the shortcut you normally use and select Properties.
- In the Shortcut tab, inspect the Target field. It should point to the browser program. An unexpected web address after the program path is suspicious.
- If you find an extra address, don't delete the entire shortcut immediately. First confirm that the program path is legitimate and that the address is not part of a shortcut you intentionally created. If the extra address is clearly unwanted and you can safely edit the field, remove only that extra text, leaving the program path and its closing quotation mark intact. If you're uncertain, create a fresh shortcut from the browser in the Start menu and test it.
If the homepage changes even when you open the browser from a fresh shortcut, the cause is likely elsewhere, so continue with the next checks.
Step 5: Look for unwanted software
When the change keeps returning, review apps installed around the time it started and scan the computer. Don't assume every unfamiliar app is malicious; check its publisher and search for reliable information before removing it.
- Windows: Open Windows Security > Virus & threat protection > Scan options and run a full scan. Then open Settings > Apps > Installed apps and review recently installed programs you don't recognize.
- Mac: Review System Settings > General > Login Items & Extensions and look for unfamiliar items. Check the Applications folder for apps you don't recognize before removing them.
Use a reputable security product if you need a second opinion. Avoid “cleaner” or security tools promoted by alarming pop-ups; those prompts can themselves be deceptive. For more detailed guidance, follow this guide to how to remove malware from your computer.
Step 6: Reset browser settings if the problem persists
Resetting is a later step, not the first one. It can undo custom settings and disable extensions, so try the checks above first.
- Chrome: Open Settings > Reset settings and choose Restore settings to their original defaults. This resets several browser settings and disables extensions, but normally keeps bookmarks, history, and saved passwords.
- Edge: Open Settings > Reset settings and choose Restore settings to their default values.
- Firefox: Open the menu, choose Help > More troubleshooting information, then select Refresh Firefox. Review Mozilla's explanation of what will be removed before confirming.
- Safari: Safari has no single reset-to-defaults button. Remove unwanted extensions, review the homepage and search settings, and clear website data for unfamiliar sites if needed.
Resetting a browser does not remove every potentially unwanted program from the computer. If the homepage changes again after a reset, revisit the extension, management, shortcut, and security checks rather than repeatedly resetting the browser.
How to prevent the homepage from changing again
- Download apps from their official publisher or a trusted store, and read installation screens before accepting optional extras.
- Keep only extensions you use and trust. Review them when browser behavior changes unexpectedly.
- Keep your browser and operating system updated.
- Be wary of pop-ups claiming that your computer is infected or that you must install a tool immediately.
When to get more help
Contact the browser's official support or a trusted technician if the homepage remains locked after these checks, unfamiliar policies keep returning, or security scans detect threats you cannot remove. On a work or school device, contact IT instead of trying to bypass management controls.
Start by restoring the homepage and search engine, then disable suspicious extensions and check whether the browser is managed. If the change returns, inspect the shortcut and scan for unwanted software. Reset the browser only after those checks; this sequence is more likely to address the cause rather than just hide the symptom.