What disabling cookies actually does
Disabling cookies stops websites from storing small files on your device that track your browsing, remember your login information, and build a profile of your interests. When you turn off cookies, you lose some convenience — sites won't remember you, you'll log in more often, shopping carts will empty — but you also stop many data brokers from collecting information about which sites you visit and what you do there.
This is one piece of a larger privacy strategy. Disabling cookies alone won't stop data brokers from buying information about you from other sources, but it does cut off one major pipeline they use to build and sell profiles. It's most useful when combined with other steps, like removing yourself from data broker lists or using a privacy-focused search engine.
The steps differ depending on which browser you use. Chrome, Firefox, Safari, and Edge all have cookie controls, but they're in different places and work slightly differently.
Key Takeaways
- Disabling all cookies will log you out of most websites and prevent sites from remembering your preferences, but it stops trackers from following you across the web.
- You can block third-party cookies only (the ones data brokers use most) while keeping first-party cookies that let sites function normally.
- The steps to disable cookies are different in Chrome, Firefox, Safari, and Edge, and the settings are in different menu locations in each browser.
- Disabling cookies is most effective when paired with removing yourself from data broker websites and clearing your browser history regularly.
Disable cookies in Google Chrome
Open Chrome and click the three vertical dots in the top right corner. Select Settings, then click Privacy and security in the left sidebar. Choose Cookies and other site data.
You'll see three options. Allow all cookies is the default. Block third-party cookies stops data brokers and advertisers from tracking you across sites while letting individual websites function normally — this is the middle ground most people choose. Block all cookies stops all cookie storage, which breaks many websites.
If you choose to block third-party cookies, also check the box that says Clear cookies and site data when you close all windows. This deletes tracking cookies every time you close Chrome completely, not just individual tabs.
Disable cookies in Mozilla Firefox
Open Firefox and click the three horizontal lines in the top right corner. Select Settings, then click Privacy & Security in the left sidebar. Scroll down to the Cookies and Site Data section.
Check the box next to Delete cookies and site data when Firefox is closed. Then, under Enhanced Tracking Protection, select Strict. This blocks most third-party tracking cookies by default and clears remaining cookies when you close the browser.
If Strict mode breaks websites you need to use, you can switch to Standard mode instead, which blocks fewer trackers but still removes cookies on exit.
Disable cookies in Apple Safari
Open Safari and click Safari in the top menu bar. Select Settings (or Preferences on older versions), then click the Privacy tab.
Under Cookies and website data, select Block all cookies or Allow only websites you visit. The second option is less restrictive and still stops most tracking. Check the box next to Prevent cross-site tracking — this is Safari's main defense against data brokers following you across sites.
Safari automatically clears cookies and browsing data when you close the browser if you enable Remove history items and set it to After one day or Manually.
Disable cookies in Microsoft Edge
Open Edge and click the three dots in the top right corner. Select Settings, then click Privacy, search, and services in the left sidebar. Scroll to Clear browsing data and toggle on Choose what to clear every time you close the browser.
Under Tracking prevention, select Strict. This blocks third-party cookies and many trackers. Then scroll down to Cookies and other site data and select Block third-party cookies.
Edge will now delete cookies and site data every time you close the browser completely, and it will block most tracking cookies while you browse.
What to expect after disabling cookies
Websites will log you out more frequently. You'll need to enter your password again the next time you visit, even for sites you use regularly. Shopping carts will empty between sessions. Some sites may not remember your language preference or font size settings.
A small number of websites may not work correctly — video players might stall, forms might not submit, or pages might load slowly. If this happens on a site you need to use, you can add that specific site to an exception list so it can use cookies. In Chrome, click the lock icon next to the website address and change the cookie setting for that site only. In Firefox, go to Settings > Privacy & Security > Cookies and Site Data > Manage Exceptions. In Safari and Edge, you can temporarily allow cookies for a single site through the same lock icon menu.
Combine cookie blocking with other privacy steps
Disabling cookies works best as part of a larger strategy. After you disable cookies, clear your browser history and cache — this removes data that websites already collected about you. In most browsers, press Ctrl+Shift+Delete (Windows) or Command+Shift+Delete (Mac) to open the clear browsing data menu.
Consider also removing yourself from data broker websites directly. Disabling cookies stops them from collecting new information about your browsing, but they already have data about you from other sources. Sites like Spokeo, PeopleFinder, and Whitepages let you request removal of your information, though the process varies by site.
Using a privacy-focused search engine like DuckDuckGo instead of Google also reduces the amount of information collected about your searches. These steps together create multiple barriers to data collection rather than relying on any single tool.
Frequently Asked Questions
Will disabling cookies make me anonymous online?
No. Disabling cookies stops one tracking method, but websites can still identify you through your IP address, browser fingerprinting, and login information. Cookies are just one piece of how data brokers build profiles. You remain visible to your internet service provider and the websites you visit directly.
Can I block cookies on my phone?
Yes. On iPhone, open Settings > Safari > Privacy & Security and toggle on Prevent Cross-Site Tracking. On Android, open Chrome > Settings > Privacy and Security > Cookies and other site data and select Block third-party cookies. The steps are similar to desktop versions.
What's the difference between first-party and third-party cookies?
First-party cookies are set by the website you're visiting — they let the site remember you and function normally. Third-party cookies are set by advertisers and data brokers embedded on the page. Blocking third-party cookies only stops tracking while keeping sites usable. Blocking all cookies breaks most websites.
Do I need to disable cookies if I use private or incognito mode?
Private mode deletes cookies when you close the window, but it doesn't stop websites from setting them in the first place. Disabling cookies in your settings is more thorough because it prevents the tracking from happening at all, even in private mode.
Will websites work if I block all cookies?
Most won't work well. Blocking all cookies breaks login systems, shopping carts, and preference storage. Blocking third-party cookies only is the practical middle ground — it stops most tracking while keeping websites functional. You can always add exceptions for sites that need cookies to work.