You can disable incognito mode in Chrome, Firefox, Edge, and Safari through settings, but the method differs by browser

Incognito mode (called Private Browsing in Firefox and Safari) lets someone browse without saving history, cookies, or search records. If you share a device and want to prevent others from using it, or if you manage a work computer, you can turn it off. The steps depend on which browser you use, and on some browsers you need administrator access to make the change stick.

Disabling incognito mode does not erase browsing history that was already created in incognito sessions — it only prevents new private browsing sessions from starting. If you need to check what someone has already browsed, that information is not stored anywhere once an incognito window closes.

Key Takeaways

  • Chrome, Firefox, Edge, and Safari all have settings to disable private browsing, but you access them in different places within each browser.
  • On Windows and Mac computers, you may need administrator rights to disable incognito mode permanently.
  • Disabling incognito mode prevents new private sessions from opening but does not recover browsing history from sessions that already closed.
  • On shared devices, disabling incognito mode works best alongside other parental controls or device restrictions if you need to monitor activity.

Disable incognito mode in Google Chrome

In Chrome, you control incognito mode through a policy setting that requires administrator access on Windows or Mac. Open Chrome and click the three vertical dots in the top right corner, then select Settings. Go to Privacy and security on the left sidebar, then click Cookies and other site data.

Look for the option labeled Block third-party cookies or similar privacy settings, but note that this does not actually disable incognito mode itself. To truly block incognito mode in Chrome, you need to use Group Policy (on Windows) or a configuration profile (on Mac). On Windows, press Windows key + R, type gpedit.msc, and press Enter. Navigate to User Configuration > Administrative Templates > Google > Google Chrome, then find and enable the policy Incognito mode availability and set it to Disabled.

On Mac, this requires creating a managed configuration file, which is more technical. If you are managing a work device, your IT department can push this setting to all computers at once. For personal devices where you are the only administrator, the Group Policy method on Windows is the most straightforward approach.

Disable private browsing in Firefox

Firefox does not have a built-in setting to disable private browsing mode directly through the user interface. Instead, you can use Firefox's configuration file or install a parental control extension. The simplest method for most people is to use the Firefox Parental Controls feature if you are managing a child's device, or to install a third-party extension that blocks private mode.

If you have administrator access and want a system-level block, you can edit Firefox's configuration file. On Windows, navigate to C:\Program Files\Mozilla Firefox\defaults\pref and create or edit a file called autoconfig.js. Add the line pref("browser.privatebrowsing.autostart", false); to prevent private mode from starting automatically, though this does not fully disable it.

For most users on shared devices, using parental control software at the operating system level (Windows Parental Controls or Mac Screen Time) is more effective than trying to disable it within Firefox itself.

Disable private browsing in Safari

On Mac, open Safari and click Safari in the menu bar, then select Settings. Go to the General tab and look for the option Safari opens with. You can set this to A new window instead of A new private window, but this does not disable private browsing entirely.

To fully disable private browsing in Safari on Mac, you need to use Screen Time or parental controls at the system level. Open System Settings, click Screen Time, then Content & Privacy. Under Allowed Apps, you can restrict Safari, though this blocks the browser entirely rather than just private mode.

On iPhone or iPad, open Settings, tap Screen Time, then Content & Privacy Restrictions. Tap Allowed Apps and toggle off Safari to block the browser, or use Web Content restrictions to limit what can be browsed. These device-level controls are more reliable than browser settings for preventing private browsing on Apple devices.

Disable incognito mode in Microsoft Edge

In Edge, click the three horizontal dots in the top right, select Settings, then go to Privacy, search, and services. Scroll down to Clear browsing data and look for options related to InPrivate browsing, but Edge does not have a direct toggle to disable it in the settings menu.

Like Chrome, Edge uses Group Policy on Windows to disable InPrivate mode. Press Windows key + R, type gpedit.msc, and navigate to Computer Configuration > Administrative Templates > Microsoft Edge. Find the policy InPrivate mode availability and set it to Disabled. This requires administrator rights and affects all users on that computer.

If you do not have access to Group Policy (on Windows Home edition, for example), you can use Windows Parental Controls or a third-party monitoring tool to restrict private browsing across the entire device rather than just in Edge.

Use device-level controls instead of browser settings

Disabling incognito mode through individual browser settings is often incomplete because someone can simply switch to a different browser. A more reliable approach is to use your operating system's built-in parental controls or device management tools.

On Windows, open Settings, go to Accounts, then Family & other users. Click Add a family member and set up a child account, then click Manage family settings online. From there, you can restrict app usage, set screen time limits, and control web browsing across all browsers at once.

On Mac, open System Settings, click Screen Time, then Content & Privacy. You can restrict web content, limit app usage, and set downtime schedules. These system-level controls work regardless of which browser someone opens, making them more effective than trying to disable incognito mode in each browser separately.

What happens after you disable incognito mode

Once incognito mode is disabled, attempting to open a new private window will either show an error message or the option will be grayed out, depending on the browser. On Chrome and Edge, the keyboard shortcut Ctrl + Shift + N (Windows) or Command + Shift + N (Mac) will no longer work. In Firefox and Safari, the private browsing option will be unavailable in the menu.

Disabling incognito mode does not affect browsing history that was already created. If someone used incognito mode before you disabled it, that session data is gone — private browsing does not save history by design. You cannot recover what was viewed in a closed incognito window, whether or not the mode is now disabled.

If you need to monitor what someone is actually browsing in real time, device-level monitoring tools or parental control software are more effective than simply disabling incognito mode. These tools can log activity across all browsers and applications.

Frequently Asked Questions

Can someone re-enable incognito mode if I disable it?

If they have administrator access to the computer, yes — they can undo the Group Policy change or parental control setting. If you are the only administrator and have set a strong password, they cannot change it without your permission. On shared devices, keeping administrator access restricted is as important as the incognito mode setting itself.

Does disabling incognito mode let me see what someone browsed?

No. Disabling incognito mode only prevents new private sessions from opening. It does not recover history from sessions that already closed, and it does not show you what someone is browsing in regular (non-private) mode. To monitor browsing activity, you need separate monitoring software or router-level controls.

Will disabling incognito mode work on my phone?

On iPhone and iPad, you cannot disable private browsing through Safari settings alone. Use Screen Time and Content & Privacy Restrictions instead to limit Safari access or web content. On Android, Chrome does not have a built-in disable option; use Google Family Link or device-level parental controls to restrict private browsing across all apps.

What if I only want to disable incognito mode for certain users?

Set up separate user accounts on your computer and apply the restrictions only to specific accounts. On Windows, create a standard user account (not administrator) and apply parental controls to it. On Mac, create a managed account through Family Sharing and restrict that account's web access. The person using the restricted account will not be able to enable incognito mode, while your administrator account retains full access.

Does disabling incognito mode affect my own browsing?

Yes, if you apply the setting to your own account, you will not be able to use private browsing either. If you are the administrator, you can usually keep the restriction off your own account while applying it to others. Check your browser or device settings to confirm which accounts the restriction applies to before enabling it.