Chrome's built-in pop-up blocker stops most ads automatically

Chrome comes with a pop-up blocker turned on by default. It catches the majority of unwanted pop-ups before they appear on your screen. However, the built-in blocker has limits — it does not catch every pop-up, and some websites deliberately design ads to slip past it. If you are still seeing pop-ups, you have two paths: adjust Chrome's settings to tighten the built-in blocker, or add an extension that specializes in blocking ads.

The built-in blocker works silently in the background. When a pop-up is blocked, Chrome shows a small notification in the address bar but does not interrupt what you are doing. This is different from extensions, which you install separately and can customize further.

Key Takeaways

  • Chrome blocks most pop-ups automatically, but you can verify the setting is on in Chrome Settings under Privacy and Security.
  • If pop-ups still appear, check whether the website itself is requesting permission to show notifications — these are not pop-ups and require a separate block.
  • Extensions like uBlock Origin and Adblock Plus block more ads than Chrome's built-in blocker, including video ads and banner ads, not just pop-ups.
  • Some websites will not load properly if you block all ads, so you may need to add specific sites to an extension's allowlist.

Verify that Chrome's pop-up blocker is enabled

Open Chrome and click the three vertical dots in the top right corner. Select Settings, then click Privacy and security in the left sidebar. Look for Site settings and click it. Scroll down and select Pop-ups and redirects. The toggle should show Blocked in blue. If it shows Allowed, click the toggle to turn blocking back on.

If the toggle is already set to Blocked, Chrome's pop-up blocker is active. The pop-ups you are seeing may be notifications instead of pop-ups, or they may be coming from a website you have previously allowed to show pop-ups. You can see which sites have permission by scrolling down on this same page — any site listed under Allowed will bypass the blocker.

Remove permission from websites that show unwanted pop-ups

On the Pop-ups and redirects page, look for the list of allowed sites under the Allowed section. If you see a website you no longer want to receive pop-ups from, click the three dots next to it and select Remove. The next time you visit that site, Chrome will block its pop-ups again.

Be aware that removing a site's permission may break some features on that website. For example, a news site might use pop-ups for login windows or video players. If a site stops working after you remove its permission, you can add it back by clicking Add and typing the website address.

Block notifications separately from pop-ups

Websites can also send notifications that look like pop-ups but are technically different. These appear as small boxes in the corner of your screen, often asking permission to send you alerts. Chrome's pop-up blocker does not stop these — you need to manage notification permissions separately.

Go to Settings > Privacy and security > Site settings > Notifications. You will see a list of sites allowed to send notifications. Remove any site you do not want notifications from by clicking the three dots and selecting Remove. You can also set the default to Blocked so Chrome asks for permission before any site sends notifications, giving you a chance to decline.

Install an ad-blocking extension for stronger protection

If pop-ups continue after adjusting Chrome's settings, an extension can block more types of ads. uBlock Origin is free and blocks pop-ups, banner ads, and video ads. Adblock Plus is another free option with similar features. Both are available in the Chrome Web Store.

To install an extension, go to the Chrome Web Store, search for the extension name, and click Add to Chrome. Chrome will ask for confirmation — click Add extension. The extension icon will appear in the top right corner of your browser. Some extensions show a number indicating how many ads they blocked on the current page.

Extensions give you more control than the built-in blocker. You can click the extension icon to see what it blocked, temporarily turn it off for a specific site, or adjust its settings. However, extensions use more memory than Chrome's built-in blocker, so your browser may run slightly slower if you install several at once.

Add websites to an extension's allowlist if they do not load properly

Some websites rely on ads to function or will not load if all ads are blocked. If a site looks broken after you install an ad blocker, you can allow ads on that site specifically. Click the extension icon, then look for an option to disable it on that site — the exact wording depends on which extension you use. For uBlock Origin, click the power icon. For Adblock Plus, click Disable on this site.

Disabling the extension on a site means ads will show there, but the extension will still block ads on every other site you visit. This is useful for supporting websites you want to help, or for sites that genuinely need ads to work properly.

Frequently Asked Questions

Why am I still seeing pop-ups if Chrome's blocker is on?

Some pop-ups are actually notifications, which Chrome's pop-up blocker does not stop. Others come from websites you previously allowed to show pop-ups. Check your notification settings and remove permission from sites you no longer trust. If pop-ups continue, an extension like uBlock Origin will catch more types of ads.

Will blocking ads break websites I use?

Some websites will not load properly with all ads blocked because they rely on ad revenue to function. If a site looks broken, you can add it to your extension's allowlist so ads show there but nowhere else. Most major news and entertainment sites work fine with ad blockers, though they may ask you to turn off the blocker.

Do I need both Chrome's built-in blocker and an extension?

No. Chrome's built-in blocker handles most pop-ups on its own. Install an extension only if you are still seeing ads after confirming the built-in blocker is on. Using multiple extensions together can slow your browser down without blocking significantly more ads.

Can websites detect that I am using an ad blocker?

Yes, some websites can tell when an ad blocker is active and may ask you to turn it off or subscribe to remove ads. They cannot force you to disable the blocker, but they can refuse to show content until you do. This is a choice each website makes.

Is it safe to install ad-blocking extensions?

Extensions from the Chrome Web Store are reviewed by Google before they are published, but no review catches every problem. Stick to well-known extensions like uBlock Origin and Adblock Plus, which have millions of users and are regularly updated. Check the reviews and installation count before installing anything.