The fastest way to stop pop-ups depends on your browser
Most modern browsers have a built-in pop-up blocker that works automatically — you don't have to turn it on or install anything. Chrome, Firefox, Safari, and Edge all block most pop-ups by default. If you're still seeing them, your blocker may be turned off, or you may need a stronger tool like an extension.
The difference between a basic blocker and an extension matters. Your browser's built-in blocker stops pop-ups that open in new windows or tabs. Extensions like uBlock Origin or Adblock Plus go further — they block ads that appear inside the page itself, ads that slide in from the sides, and some pop-ups that the basic blocker misses. If you see ads constantly, an extension will reduce them more than the browser alone.
Key Takeaways
- Check your browser settings first — Chrome, Firefox, Safari, and Edge all have pop-up blockers turned on by default, but you can verify this in a few clicks.
- If your built-in blocker isn't stopping pop-ups, install a free extension like uBlock Origin, which blocks both pop-ups and ads that appear inside web pages.
- Some websites require you to turn off your blocker to use them — you can allow pop-ups on specific sites without disabling the blocker everywhere.
- Clearing your browser cache and cookies can sometimes stop pop-ups that are tied to your browsing history.
How to check and enable your browser's built-in blocker
Chrome: Click the three vertical dots in the top right corner, select Settings, then Privacy and Security, then Site Settings. Scroll down and click Pop-ups and redirects. Make sure "Blocked (recommended)" is selected. If it says "Allowed," click the toggle to turn blocking back on.
Firefox: Click the menu button (three horizontal lines) in the top right, select Settings, then Privacy & Security. Scroll to the Permissions section and look for "Block pop-up windows." Make sure the checkbox is marked.
Safari: Click Safari in the menu bar at the top, then Preferences. Click the Security tab and make sure "Block pop-up windows" is checked.
Edge: Click the three dots in the top right, select Settings, then Privacy, search, and services. Scroll to Security and click Pop-ups and redirects. Make sure it's set to "Block."
Installing an ad-blocking extension for stronger protection
If your browser's built-in blocker isn't stopping the pop-ups you see, an extension will catch more. uBlock Origin is free and works on Chrome, Firefox, Safari, and Edge. It blocks pop-ups, banner ads, and video ads. Adblock Plus is another option that works similarly. Both are available in your browser's extension store — search for the name, click Add or Install, and it starts working immediately.
After you install an extension, you may see fewer ads right away, but some websites detect ad blockers and ask you to turn them off. You don't have to disable the extension everywhere — most let you click the extension icon and turn blocking off for just that one site. This way you can block ads on most sites but allow them on sites you trust or want to support.
Allowing pop-ups on specific websites you trust
Some websites need to open pop-ups to work — banking sites, video players, and online tools sometimes use them for legitimate reasons. If a site you trust isn't working because of your blocker, you can allow pop-ups just for that site.
Chrome: When you visit the site, look for a small pop-up icon in the address bar (it looks like a box with an arrow). Click it and select "Always allow pop-ups on [website name]."
Firefox: Click the menu button, select Settings, Privacy & Security, and scroll to Permissions. Click Exceptions next to "Block pop-up windows," type the website address, and click Allow.
Safari: Go to Safari > Preferences > Websites, select Pop-up Windows from the left menu, find the site in the list, and change the setting to Allow.
Edge: Click the three dots, select Settings, then Privacy, search, and services. Scroll to Security, click Pop-ups and redirects, and add the website to the Allow list.
Clearing your cache and cookies to stop targeted pop-ups
Pop-ups sometimes follow you because your browser stores information about the sites you visit. Clearing this data can stop ads that are tied to your browsing history. This won't stop all pop-ups, but it helps with ones that seem to follow you from site to site.
Chrome: Click the three dots, select More tools, then Clear browsing data. Choose "All time" from the dropdown, make sure "Cookies and other site data" and "Cached images and files" are checked, then click Clear data.
Firefox: Click the menu button, select Settings, then Privacy & Security. Under Cookies and Site Data, click Clear Data, make sure both boxes are checked, and click Clear.
Safari: Click Safari in the menu bar, select Clear History, choose "all history" from the dropdown, and click Clear History.
Edge: Click the three dots, select Settings, then Privacy, search, and services. Under Clear browsing data, click Choose what to clear, select "All time," check the boxes for cookies and cached data, and click Clear now.
What to do if pop-ups keep appearing despite your settings
If you've turned on your blocker and cleared your cache but still see pop-ups, something else may be causing them. Malware or unwanted software can override your browser settings and force ads to appear. Run a malware scan using Windows Defender (on Windows) or Malwarebytes (free version available for Windows and Mac). Restart your browser after the scan finishes.
Another cause is browser hijacking — when a website or download changes your browser's homepage or search engine without permission. Check your browser's homepage and search engine settings. In Chrome, click the three dots, select Settings, then Home, and make sure your homepage is what you expect. Do the same for Search engine under Search engine in the left menu. If something looks wrong, change it back to Google or your preferred search engine.
Frequently Asked Questions
Will blocking pop-ups break websites I use?
Most websites work fine with pop-ups blocked. Some banking sites, video players, and online tools may need pop-ups to function — if a site stops working, you can allow pop-ups just for that site without turning off blocking everywhere else. Your browser will usually prompt you when a pop-up is blocked, so you'll know if you need to allow it.
Is it safe to install an ad-blocking extension?
Extensions from official stores like the Chrome Web Store or Firefox Add-ons are safe if they're from well-known developers. uBlock Origin and Adblock Plus are both legitimate and widely used. Always install from your browser's official extension store, not from random websites, to avoid malware.
Why do some pop-ups still get through my blocker?
Some ads are built into the page itself rather than opening as separate windows, so your pop-up blocker doesn't catch them. An extension like uBlock Origin blocks these in-page ads. If you're seeing ads that look like they're part of the website, an extension will help more than your browser's built-in blocker.
Can I block pop-ups on my phone?
Yes. On iPhone, open Safari, tap the address bar, then tap the "aA" icon on the left and select "Request Desktop Website" — this loads the desktop version, which respects your pop-up blocker. On Android, Chrome has a built-in blocker you can check in Settings > Site settings > Pop-ups and redirects. You can also install Firefox on Android and add uBlock Origin as an extension.
Do I need to pay for an ad blocker?
No. uBlock Origin, Adblock Plus, and your browser's built-in blocker are all free. Some extensions offer paid versions with extra features, but the free versions block most pop-ups and ads effectively.