If your browser keeps opening unfamiliar pages, changing your search engine, or showing persistent pop-ups, first check the affected site’s permissions and your browser’s extensions and settings. Those symptoms can point to unwanted software or browser hijacking, but one pop-up alone does not prove your device is infected. Work through the checks below from the browser outward, and escalate to a device scan only if the problem persists.
Identify what is happening before you change anything
Note whether the behavior is limited to one website or happens across many sites, and whether the message appears inside a page, as a desktop notification, or in a new tab during navigation. Also check whether your homepage, startup page, search engine, or extension list changed without your permission. Persistent pop-ups, unfamiliar redirects, and extensions that return after removal are reasons to investigate, not a diagnosis by themselves. Google lists these behaviors among possible signs of unwanted software.
Mozilla describes unauthorized browser-setting changes as search or browser hijacking: “Search hijacking, or browser hijacking, occurs when a third party sneaks files into your computer and alters your browser’s settings without your permission.” Mozilla says unwanted extensions, bundled installers, misleading software, and unreliable downloads can be routes to hijacking. Redirects may lead to ads, sponsored links, or malicious downloads. Mozilla Support explains search hijacking and its possible causes.
Stop pop-ups and redirects tied to one site
If the issue appears only on one site, inspect that site’s permissions first. Remove notification or pop-up permissions you do not recognize, and remove any site from the browser’s pop-up allowlist if you did not intentionally add it. Firefox’s pop-up blocker works with third-party redirect blocking, and its exceptions dialog lets you remove one site or the full allowlist. Mozilla’s Firefox guide covers pop-up settings and exceptions.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →A browser’s pop-up control will not stop every ad or notification. Some page content only looks like a separate pop-up window, and some actions you take on a site can open a window despite the blocker. If the alert is a desktop notification, review that site’s notification permission rather than relying only on the pop-up blocker.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
For Chrome, use its site settings and pop-up controls to review or remove site access. Google’s unwanted ads and malware guide links to the relevant Chrome settings. In Safari, review the controls for blocking pop-up ads and windows using Apple’s Safari support instructions. Labels and steps can differ by device and browser version.
Review extensions, homepage, and search settings
Remove extensions or add-ons you do not recognize or no longer trust. Then check that your homepage, startup page, and default search engine are the ones you chose. Avoid add-ons and installers from sources you do not trust; some hijackers arrive bundled with other software. Mozilla recommends using reliable add-on sources and removing unwanted add-ons. Mozilla’s browser-hijack guidance explains these checks.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
If you use Chrome and its settings appear to have been changed, you can restore the browser’s settings to their original defaults. Google notes that you may need to turn trusted extensions back on afterward. A reset addresses browser settings; it does not by itself prove that unwanted software has been removed from the computer. Google’s Chrome reset instructions describe the process.
Decide whether the problem is limited to the browser
Use the scope and persistence of the behavior to choose the next step. This is a practical troubleshooting framework, not a formal diagnostic test.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
| What you observe | Most useful next check |
|---|---|
| One site shows alerts or opens windows | Review that site’s notification, pop-up, and redirect permissions. |
| Many sites redirect, or homepage/search settings changed | Review extensions and browser settings; reset the browser if needed. |
| Changes return after cleanup, or unwanted behavior continues across sites | Look for recently installed unwanted programs and use the operating system’s security tools. |
Clean up unwanted software on Windows if symptoms persist
If browser-level checks do not resolve the problem, review recently installed programs and uninstall software you do not need. Microsoft distinguishes potentially unwanted apps from malware: a potentially unwanted app is not necessarily malware, though it may display advertising or perform other unwanted actions.
- Uninstall programs you do not recognize or no longer need using Windows’ installed-app controls.
- Update Microsoft Defender Antivirus security intelligence, then run a full scan.
- If the unwanted software persists, consider Microsoft Defender Offline scan, which Microsoft lists as a further option.
See Microsoft’s Windows Security guidance for its recommendations on unwanted apps and scans. A scan is appropriate when there is reason to suspect unwanted software, but no single scan can be promised to resolve every redirect: the cause may instead be a site permission, extension, browser setting, or network issue.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Reduce the chance of another hijack
- Do not click a suspicious pop-up claiming your device has a virus or needs an urgent update, and do not download software it offers. Get updates from the software maker’s official site.
- Keep your browser and other software updated, and avoid unreliable downloads or bundled installers you did not intend to install. Mozilla’s prevention guidance covers updates, downloads, and add-ons.
- In Microsoft Edge, make sure Microsoft Defender SmartScreen is enabled to warn about phishing sites and malicious downloads, and keep Edge updated for current security fixes. Microsoft explains Defender SmartScreen.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problems
