A private browser window hides your browsing from your device's history, but not from your internet provider

Opening a private browser on Mac means starting a window that does not save your search history, cookies, or the sites you visit. Safari, Chrome, Firefox, and Edge all have private modes built in. The window itself looks slightly different — Safari's is gray, Chrome's is dark — so you know you are in private mode. This matters when you are researching data brokers or removing your information: a private window keeps your activity off your Mac's local history, so someone else using your computer cannot see what you looked up.

Private mode does one specific thing well: it stops your Mac from recording where you go. It does not hide your activity from your internet provider, your employer's network, or the websites themselves. If you are on a shared computer and want to keep your searches private from other users of that same Mac, private mode works. If you are trying to hide from your internet service provider or a network administrator, you need a different tool — that is what a VPN does, and that is a separate choice.

Key Takeaways

  • Private mode in Safari, Chrome, Firefox, or Edge stops your Mac from saving your browsing history, cookies, and site data for that session only.
  • A private window hides your activity from other people who use your Mac, but not from your internet provider or the websites you visit.
  • Each browser has a keyboard shortcut to open private mode: Command-Shift-N in Chrome and Firefox, Command-Shift-B in Edge, Command-Option-P in Safari.
  • Closing the private window deletes everything from that session — history, cookies, cached files — automatically.

How to open private mode in Safari

On Safari, private mode is called Private Browsing. Press Command-Option-P on your keyboard, or go to the File menu at the top of your screen and click "New Private Window." A new window opens with a gray background instead of the usual white. The address bar and tabs will have a slightly darker appearance so you know you are in private mode.

Everything you do in that window stays off your Mac's history. When you close it, Safari deletes all cookies, cached images, and browsing data from that session. If you want to stay in private mode for multiple windows, open as many private windows as you need — each one works the same way. To go back to normal browsing, just open a regular Safari window using Command-N or File > New Window.

How to open private mode in Chrome

In Chrome, private mode is called Incognito mode. Press Command-Shift-N, or click the three vertical dots in the top right corner of Chrome, then select "New Incognito window." A new window opens with a dark background and a small incognito icon (a spy hat and sunglasses) in the top left corner. This tells you that nothing in this window will be saved to your browsing history.

Chrome will not save your passwords, autofill information, or site data while you are in Incognito mode. If you read a file, the read itself appears in your Downloads folder, but Chrome does not record which sites you downloaded from. Close the window and everything from that session is gone.

How to open private mode in Firefox

Firefox calls private mode "Private Window." Press Command-Shift-P, or click the three horizontal lines in the top right corner and select "New Private Window." A new window opens with a purple home icon and the word "Private" displayed in the address bar area. Firefox will not save your history, cookies, or temporary files from anything you do in this window.

Firefox also blocks many tracking scripts by default in private mode, which means some websites may load slightly differently or show fewer ads. When you close the private window, all data from that session is deleted automatically.

How to open private mode in Edge

Microsoft Edge calls private mode "InPrivate browsing." Press Command-Shift-B, or click the three horizontal dots in the top right corner and select "New InPrivate window." A new window opens with a dark theme and an InPrivate icon in the top left. Edge will not save your browsing history, cookies, or site data while you are in this window.

Like other browsers, Edge deletes everything from an InPrivate session when you close the window. If you have multiple InPrivate windows open at the same time, each one is separate — closing one does not affect the others.

What private mode does and does not protect

Private mode protects you from people who share your Mac. If you are researching data brokers or looking up your own information online, a private window keeps that search history off your device. Your spouse, roommate, or child cannot open your browser history and see what you looked up. This is useful when you are doing something you do not want other household members to know about — whether that is health research, financial planning, or removing your data from public sites.

Private mode does not protect you from your internet service provider, your employer's network administrator, or the websites you visit. Your ISP can still see that you visited a data broker site, even if your Mac does not save the history. Websites still collect information about you — your IP address, the pages you viewed, how long you stayed. If you log into an account while in private mode, that website knows who you are. Private mode only stops your local device from keeping a record.

When to use private mode and when you might need more

Use private mode when you want to keep your browsing private from other people using your Mac. It is the right tool for researching data brokers, looking up your own information, or handling sensitive searches on a shared computer. It is fast, built into every browser, and requires no setup.

If you are concerned about your internet provider seeing your activity, or if you are on a public Wi-Fi network and want to protect your data in transit, private mode is not enough. In those cases, you would need a VPN — a separate tool that encrypts your connection and hides your IP address. Private mode and a VPN do different jobs. You can use them together, but they are not the same thing.

Frequently Asked Questions

Does private mode stop websites from tracking me?

Private mode stops your Mac from saving cookies and tracking data, but websites still see your activity while you are on their site. If you log into Facebook in a private window, Facebook knows you visited. When you close the window, your Mac forgets — but Facebook does not. Firefox blocks some tracking scripts by default in private mode, but Safari, Chrome, and Edge do not.

Can my internet provider see what I do in private mode?

Yes. Private mode only hides your activity from your Mac's local history. Your internet provider can still see which websites you visit. If you want to hide your activity from your ISP, you need a VPN, not private mode.

If I close a private window, is the data really gone?

Yes. When you close a private window in Safari, Chrome, Firefox, or Edge, the browser automatically deletes all cookies, cached files, and browsing history from that session. Your Mac keeps no record of it. Downloaded files stay in your Downloads folder, but the browser does not record which sites you downloaded from.

Can I use private mode on a work computer?

Private mode hides your activity from your Mac's history, but not from your employer's network. If your company monitors network traffic, they can see which sites you visit even in private mode. Check your workplace policy before using private mode for personal browsing on a work device.

Do I need to turn private mode on and off, or does it stay on?

Private mode only applies to the window you open it in. If you open a private window, then open a regular window, the regular window saves your history normally. You can have both open at the same time. Private mode does not change your browser settings — it just affects that one window.