You Are Not Alone in This Battle Against Mac Pop Ups
It starts innocently enough. You are browsing the web, researching a recipe, or trying to watch a video. Suddenly, a window blasts over your screen, promising a fake virus scan, a too-good-to-be-true prize, or an urgent “system alert” from a website you do not trust. You click frantically to close it, only to find three more have spawned underneath.
This digital bombardment is not just annoying. It slows down your Mac, disrupts your workflow, and can be a gateway to malware or scams. If you are searching for how to turn off pop ups on your Mac, you have reached the right guide. We will walk through every setting, browser, and tool you need to reclaim a clean, peaceful computing experience.
Understanding Where Mac Pop Ups Come From
Before we dive into the fixes, it helps to know what you are fighting. Pop ups on a Mac generally fall into three categories, each with its own solution.
Browser pop ups are the most common. These are advertisements, surveys, or fake alerts generated by websites you visit. They open in new windows or tabs within Safari, Chrome, or Firefox.
System or notification pop ups appear as banners or alerts in the top-right corner of your screen. These are generated by macOS itself or by apps you have installed, like calendar reminders or software update prompts.
Malicious or adware pop ups are the most intrusive. These often pretend to be system warnings (“Your Mac is infected!”) and can appear even when you are not using a browser. They are usually caused by a sneaky piece of adware that has been installed on your Mac, sometimes bundled with other software.
Your First Line of Defense: Safari Pop Up Blocker
Safari, Apple’s native browser, has a robust built-in pop-up blocker that is often turned on by default, but it is worth checking.
Open Safari and click “Safari” in the menu bar at the top of your screen. Select “Settings” from the dropdown menu.
Click on the “Websites” tab in the settings window. In the left-hand sidebar, find and select “Pop-up Windows”.
On the right, you will see two sections. The top section, “Configured Websites,” shows sites where you have customized the behavior. Below that, for “When visiting other websites,” ensure the dropdown is set to “Block and Notify” or simply “Block”.
“Block and Notify” is the best setting. It stops pop ups and shows a small icon in the Safari address bar if one was blocked, allowing you to allow pop ups for a specific site if needed (like for a banking site that uses pop ups for login).
Taking Control in Google Chrome
If Chrome is your browser of choice, its settings are just as powerful.
Open Chrome and click the three-dot menu icon in the top-right corner. Go to “Settings”.
In the left sidebar, click “Privacy and security”. Then, select “Site settings” from the main panel.
Scroll down until you find the “Pop-ups and redirects” option and click on it.
At the top, make sure the toggle is set to “Blocked (recommended)”. Below, you can manage exceptions by adding specific websites to the “Allow” list if necessary.
Managing Pop Ups in Firefox
Firefox users can follow a similar path to enable strong pop-up blocking.
Click the three-line menu icon in the top-right and select “Settings”.
Choose “Privacy & Security” from the left-hand menu.
Scroll down to the “Permissions” section. Find the line that says “Block pop-up windows” and ensure the checkbox next to it is ticked.
To the right of that option, click the “Exceptions” button if you need to allow pop ups for certain trusted sites.
Silencing System and App Notifications
Sometimes the pop ups are not from the web, but from your Mac or its apps. These are managed through System Settings.
Click the Apple logo in the top-left corner of your screen and select “System Settings”.
Go to “Notifications”. Here you will see a list of every application installed on your Mac that can send alerts.
You have granular control for each app. You can completely turn off notifications for an app by toggling the main switch off. For more subtle control, you can leave them on but change the alert style from “Banners” (which appear and fade away) to “Alerts” (which require a click), or turn off sounds and notification previews.
Pay special attention to web browsers in this list. You can disable website notification requests here, stopping sites from asking to send you alerts in the first place.
Dealing With Stubborn Adware and Malware Pop Ups
If you are seeing pop up ads for MacKeeper, Advanced Mac Cleaner, or other dubious software on your desktop or in browsers you are not even using, you likely have adware. This requires a cleanup, not just a setting change.
First, check your Login Items. Go to System Settings > General > Login Items. Look at both the “Open at Login” and “Allow in the Background” lists. If you see any application name you do not recognize or trust, select it and click the minus (-) button to remove it. This stops the adware from launching when you start your Mac.
Next, check your Profiles, which can enforce settings. Go to System Settings > Privacy & Security. Scroll all the way down to the “Profiles” section. If you see any profiles here that you did not intentionally install (especially ones with generic or suspicious names), select them and remove them.
Now, manually hunt for the bad app. Open your Applications folder (Go > Applications from the Finder menu). Look for any recently installed apps with names that match the pop up ads or that seem unfamiliar. Drag them to the Trash. Do the same in your Downloads folder.
Finally, reset your browsers to clear any hidden extensions or settings hijacked by the adware. In Safari, go to Settings > Advanced and enable “Show Develop menu in menu bar”. Then, from the new “Develop” menu, select “Empty Caches”. A more thorough reset is in Safari Settings > Advanced > “Manage Website Data…” to remove all data, but this will log you out of most sites.
In Chrome, go to Settings > Reset settings > “Restore settings to their original defaults”. In Firefox, go to Help > “More Troubleshooting Information” > “Refresh Firefox”.
Advanced Tactics and Pro Tips
For those who want an extra layer of protection, consider these steps.
Install a reputable ad-blocking extension like AdGuard for Safari, or uBlock Origin for Chrome and Firefox. These block pop ups at the network level and can filter out many types of ads on web pages themselves.
Be extremely cautious about what you install. Always download software from the official Mac App Store or the developer’s verified website. When installing, read every screen of the installer carefully. Avoid “quick” or “recommended” install options, as these often hide checkboxes that install additional bundled software.
Keep your macOS and browsers updated. Apple and browser developers constantly patch security vulnerabilities that malware can exploit. Enable automatic updates in System Settings > General > Software Update.
What to Do When a Legitimate Site Needs Pop Ups
Some websites, like banking portals, telehealth services, or certain web apps, use pop-up windows for essential functions like login screens or document viewers. Blocking these can break the site.
This is why the browser settings allow exceptions. When you visit such a site and a needed pop up is blocked, you will usually see a small icon in the address bar (like a puzzle piece in Safari). Click it and choose to allow pop ups for that specific site. The setting will be remembered for future visits.
You can also manually add a site to the “Allow” list in your browser’s pop-up settings, as shown in the steps above.
Your Mac, Peacefully Yours Again
Stopping pop ups on a Mac is not about one magic switch. It is a layered approach: enabling the strong blockers built into your browser, managing system notifications, and knowing how to root out adware if it sneaks in. By following this guide, you have taken control of your digital environment.
Start with your primary browser’s pop-up blocker settings. Then, audit your system notifications in System Settings. If strange pop ups persist, perform the adware cleanup steps. Finally, adopt safe browsing and installation habits to prevent the problem from returning.
A clean, uninterrupted Mac is not just more pleasant to use. It is faster, more secure, and lets you focus on what you actually want to do. Take these steps today and enjoy the silence.
