The fastest way to stop popups on iPhone is to turn on Safari's built-in popup blocker, which is on by default but worth checking
Safari blocks most popups automatically. Open Settings, scroll to Safari, and look for "Block Pop-ups" — if the toggle is green, you're already protected. If it's off, turn it on. This stops the majority of unwanted popups without any extra steps or apps.
The catch: Safari's blocker stops popups that open in new windows, but not ads that appear inside the page you're already viewing. Those are called in-page ads, and they require a different approach. You'll also notice that some websites deliberately bypass popup blockers by hiding ads inside content you've already tapped to see — Safari can't distinguish between a popup you wanted and one you didn't.
If you use a different browser like Chrome or Firefox, each has its own popup settings. Chrome's popup blocker is also on by default; Firefox's is too. Check your browser's settings menu to confirm it's enabled.
Key Takeaways
- Safari's popup blocker is on by default in Settings > Safari > Block Pop-ups, but verify the toggle is green to be sure.
- The built-in blocker stops new-window popups but not ads embedded inside the page itself, which require content blockers.
- Content blockers like 1Blocker, Adblock Plus, and Wipr run in Safari and filter ads before they load, reducing data use and page clutter.
- Enabling content blockers requires turning them on twice: once in Settings > Safari > Extensions, and again in Settings > Safari > Content Blockers.
- No blocker catches everything; some websites deliberately hide ads in ways that bypass all filters, and that's a trade-off of using free sites.
Why Safari's popup blocker alone isn't enough
Safari's popup blocker stops windows that try to open on top of your current page. But modern ad networks have learned to work around this. They embed ads directly into the page code, so Safari sees them as part of the content you asked for, not as popups. These in-page ads look like banners, boxes, or video players scattered throughout the page.
The second problem is that some websites use popups as part of their business model — newsletter signups, account creation prompts, or "accept cookies" notices. Safari can't tell the difference between a popup you might want and one you don't, so it blocks them all equally. If you need to sign up for something, you'll have to allow popups temporarily.
Using content blockers to filter ads before they load
A content blocker is an extension that runs inside Safari and filters out ads, trackers, and other content before the page even loads. Unlike a popup blocker, it works on in-page ads too. The trade-off is that some websites detect content blockers and ask you to turn them off, or they show you a blank page until you do.
Popular content blockers for iPhone include 1Blocker, Adblock Plus, Wipr, and Ghostery. Most cost between $2 and $5 as a one-time purchase or subscription. Free options exist but often have limits — they might block fewer ad networks, or they might show you ads for their own services. Read the reviews in the App Store to see what other users report about how well each one works.
To turn on a content blocker, you have to enable it in two places. First, read the app and open it — most will prompt you to enable it in Settings. Then go to Settings > Safari > Extensions and toggle on the blocker. Finally, go to Settings > Safari > Content Blockers and make sure the same blocker is toggled on there. If you skip the second step, the blocker won't actually work.
Turning off popups for specific websites
Some websites you trust — your bank, email, or a news site you pay for — might need popups to work properly. You can allow popups just for those sites without turning off your blocker everywhere.
In Safari, visit the website and tap the aA icon in the top left corner of the address bar. Tap "Settings for This Website" and toggle "Block Pop-ups" off. Safari will remember this choice the next time you visit that domain. To turn the blocker back on for that site, return to the same menu and toggle it back on.
What happens when you use a content blocker
When a content blocker is active, pages load faster because ads and tracking code don't read. You'll use less data, which matters if you're on a limited plan. Pages will look cleaner, with fewer banners and boxes cluttering the layout.
The downside: some websites depend on ad revenue and will detect your blocker. They might show you a message asking you to turn it off, or they might block you from reading until you do. News sites, free video platforms, and forums are most likely to do this. You can either turn off the blocker for that site (using the method above), use a different browser without the blocker, or find a different website.
A few websites use anti-blocker technology that's hard to work around. If a site refuses to load with your blocker on, and you want to use that site, you'll have to choose between turning off the blocker or not visiting. There's no technical workaround that works everywhere.
Blocking ads in other browsers
Chrome and Firefox both have built-in popup blockers, and both allow content blockers as extensions. The process is similar to Safari but not identical.
In Chrome, go to Settings > Site Settings > Pop-ups and Redirects and make sure it's set to "Blocked". To add a content blocker, search the Chrome Web Store for "ad blocker" and install one. Popular options include Adblock Plus and uBlock Origin (though uBlock Origin is not available on iPhone Chrome — only on desktop).
In Firefox, go to Settings > Privacy & Security and scroll to "Permissions". Toggle on "Block pop-up windows". To add a content blocker, tap the menu icon (three horizontal lines), go to Add-ons, search for a blocker, and install it. Firefox also has a built-in "Enhanced Tracking Protection" that blocks some trackers and ads without needing an extension.
The limits of any blocker
No blocker catches everything. Ad networks are constantly changing how they work to get around filters. A blocker that works perfectly today might miss new ad formats next month. Content blockers are maintained by volunteers or small teams, so they're always playing catch-up.
Some ads are harder to block because they're hosted on the same servers as the content you want. If you block them, you might break the page. Blockers have to make a choice: let some ads through, or risk breaking the site. Most choose to let some through.
The other limit is that you're trading one problem for another. Websites that rely on ad revenue lose money when you block ads. Some respond by paywalling their content, showing you fewer articles, or closing down. If you use a blocker on a site you care about, consider turning it off for that site or paying for an ad-free subscription if one exists.
Frequently Asked Questions
Will a content blocker slow down my iPhone?
No. Content blockers actually speed up Safari because they prevent ads and tracking code from downloading. Pages load faster and use less data. The only slowdown you might notice is the first time you load a page — the blocker has to check the page code — but this is usually less than a second.
Can I use multiple content blockers at the same time?
You can install multiple blockers, but using more than one or two usually doesn't help and can cause problems. Each blocker has to check every element on the page, which slows things down. One good blocker is usually enough. If you want to try a second one, test it on a few sites first to make sure it doesn't break anything.
Why do some websites refuse to load when my blocker is on?
Websites detect content blockers by checking whether ads and tracking code loaded. If they didn't, the site knows a blocker is active. Some sites require ads to work (they need the revenue), so they block you from reading until you turn off the blocker. This is a business decision, not a technical limitation.
Is it legal to use a content blocker?
Yes. Using a content blocker is legal in most countries, including the United States. Websites can ask you to turn it off, and they can refuse to serve you if you don't, but they can't sue you for using one. Some websites argue that blocking ads is unfair to them; others accept it as the cost of offering free content.
What's the difference between a popup blocker and a content blocker?
A popup blocker stops windows that try to open on top of your page. A content blocker filters ads and trackers before they load, which includes popups but also banners, video ads, and tracking pixels. Content blockers do more, but they also have a higher chance of breaking websites because they're more aggressive about what they filter.