Why websites open new tabs without asking
Websites open new tabs because they are programmed to do it, usually to show you ads, redirect you to another site, or track your browsing. Some do it on purpose when you click a link. Others do it automatically the moment you land on the page — before you click anything at all. Your browser has built-in tools to stop both kinds, and they work differently.
The automatic pop-ups are the ones that frustrate most people. A website loads, and suddenly three new tabs appear. This happens because the site's code contains instructions to open those tabs. Your browser can block these before they happen, but the setting is usually turned off by default. The good news is that turning it on takes less than a minute, and it works across every website you visit.
Websites that open new tabs when you click a link are trickier. Some of these are legitimate — a news site opening a story in a new tab so you do not lose your place. Others are deceptive — a link that looks like it goes one place but actually opens an ad somewhere else. Your browser has a setting for this too, though it requires a different approach.
Key Takeaways
- Every major browser has a pop-up blocker built in, and turning it on stops most automatic new tabs from opening.
- Pop-up blockers work best when set to "Block all pop-ups" rather than the default "Block most pop-ups" setting.
- You can also right-click a link and select "Open in current tab" to prevent a website from forcing a new tab when you click.
- If a website you trust needs to open new tabs for its features to work, you can add it to your blocker's exception list.
- Browser extensions offer more control than built-in blockers, letting you see which sites tried to open tabs and block them selectively.
Turn on your browser's pop-up blocker
Every major browser — Chrome, Firefox, Safari, and Edge — has a pop-up blocker built in. Most come with it turned on by default, but set to "Block most pop-ups" rather than "Block all pop-ups." That middle setting lets some through. Here is how to change it to block everything.
In Chrome: Click the three vertical dots in the top right corner. Select Settings. Click Privacy and security on the left. Click Site settings. Scroll down and click Pop-ups and redirects. Toggle the switch next to "Blocked (recommended)" to make sure it is on. That is it — Chrome will now block all pop-ups on every site you visit.
In Firefox: Click the three horizontal lines in the top right. Select Settings. Click Privacy and security on the left. Scroll down to Permissions. Find the section labeled "Pop-ups" and make sure the checkbox next to "Block pop-up windows" is checked. Close the tab and you are done.
In Safari: Click Safari in the menu bar at the very top of your screen. Select Preferences. Click the Security tab. Make sure the checkbox next to "Block pop-up windows" is checked. Close the window and Safari will block pop-ups from that moment on.
In Edge: Click the three dots in the top right corner. Select Settings. Click Privacy, search, and services on the left. Scroll down to Security. Find "Block pop-ups" and toggle it on. Edge will now block automatic pop-ups on all sites.
Stop links from opening in new tabs
Some websites are coded so that every link opens in a new tab, whether you want it to or not. This is different from a pop-up — you are clicking the link yourself, but the site forces it into a new tab instead of the current one. Your pop-up blocker will not stop this because it is not technically a pop-up.
The simplest fix is to right-click the link instead of left-clicking it. A menu will appear with several options. Select "Open link in current tab" or "Open in this tab" depending on your browser. The link will open where you want it instead of where the website decided.
If a website does this constantly and you find yourself right-clicking every link, you can use a browser extension to override the site's behavior. Extensions like "Open Link in Current Tab" for Chrome or "Open Link in New Tab" for Firefox let you change how links behave across the entire web. Install the extension, and links will open in your current tab by default unless you specifically ask for a new one.
Add exceptions for websites that need new tabs
Some websites legitimately need to open new tabs to work properly. A banking site might open a security window in a new tab. An email service might open attachments in new tabs. If you trust a site and want to let it open new tabs while blocking them everywhere else, you can add it to your blocker's exception list.
In Chrome: Go to Settings, then Privacy and security, then Site settings, then Pop-ups and redirects. Scroll down to "Allowed" and click Add. Type the website address — for example, yourbank.com — and click Add. Chrome will now allow that site to open new tabs while blocking all others.
In Firefox: Go to Settings, then Privacy and security. Scroll to Permissions and find Pop-ups. Click Exceptions next to "Block pop-up windows." Type the website address and click Allow. Click Save. Firefox will remember this site and let it open new tabs.
In Safari: Safari does not have an exception list for pop-ups in the same way. Instead, if a site you trust is blocked, you can temporarily allow it by clicking the pop-up notification that appears at the top of the page and selecting "Allow pop-ups for this website."
In Edge: Go to Settings, then Privacy, search, and services. Scroll to Security and find "Block pop-ups." Click Manage exceptions. Type the website address and click Add. Edge will allow that site to open new tabs from that point forward.
Use a browser extension for more control
Built-in pop-up blockers work well for most people, but they are all-or-nothing. Either a site can open pop-ups or it cannot. If you want to see which sites are trying to open tabs, block them selectively, or get more detailed control, a browser extension gives you that power.
Popular options include uBlock Origin for Chrome and Firefox, which blocks pop-ups as part of a larger ad-blocking system. It shows you a counter in the top right corner of your browser that tells you how many pop-ups, ads, and trackers it blocked on each page. Click the counter to see exactly what was blocked and whitelist specific sites if you want to.
Another option is Popup Blocker Pro for Chrome, which is designed specifically for pop-ups. It shows you a list of every pop-up that tried to open, lets you see which site sent it, and gives you the option to allow future pop-ups from that site or keep blocking them. This level of detail helps you understand which websites are being aggressive and which are legitimate.
To install an extension, go to your browser's extension store — the Chrome Web Store for Chrome, Add-ons for Firefox, or the Edge Add-ons store for Edge. Search for the extension by name, click it, and click the Add or Install button. The extension will appear in your toolbar immediately and start working right away.
What to do if you accidentally blocked a pop-up you needed
Sometimes your blocker will stop a pop-up that you actually wanted to see. This happens most often with banking sites, payment processors, or online forms that open in new windows. You will usually see a notification at the top or bottom of the page saying "Pop-up blocked" with an option to show it anyway.
Click that notification and select "Allow" or "Show pop-up." The blocked window will appear. If you want that site to be able to open pop-ups in the future without asking, click the option to add it to your exceptions list. Your blocker will remember this choice and let that site open new tabs from now on without stopping them.
If you do not see a notification, you can manually allow the pop-up by going into your browser's pop-up settings and adding the website to your exceptions list using the steps described earlier in this guide. The next time you visit that site, the pop-up will open normally.
Frequently Asked Questions
Will blocking pop-ups break websites I use?
Most websites work fine with pop-ups blocked. Some banking sites, payment systems, and online forms may need pop-ups to function, but you will see a notification when one is blocked and can allow it with one click. You can also add those sites to your exceptions list so they always work.
Can I block pop-ups on my phone or tablet?
Yes. Chrome for Android and Safari for iPhone both have pop-up blockers built in and turned on by default. Firefox for mobile also blocks pop-ups automatically. The settings are usually in the browser's main menu under Privacy or Security, though the exact steps vary by device.
What is the difference between a pop-up and a pop-under?
A pop-up opens in front of your current window. A pop-under opens behind it, so you do not see it until you close or minimize your browser window. Most pop-up blockers catch both, but some pop-unders slip through. If you notice new tabs appearing behind your current one, your blocker may need adjustment or an extension may help.
Do I need an extension if my browser already has a pop-up blocker?
No. Your browser's built-in blocker handles most cases. Extensions are useful only if you want to see detailed information about what was blocked, block ads in addition to pop-ups, or have more granular control over which sites can open new tabs.
Why do some websites still open new tabs even with my blocker on?
Some new tabs are opened by links you click, not by automatic pop-ups. Your pop-up blocker stops automatic ones but not links coded to open in new tabs. Right-click those links and select "Open in current tab" instead, or use an extension designed to override that behavior.