What disabling cookies actually does
Disabling cookies stops websites from storing small files on your device that track your activity, remember your login information, and follow you across the internet. When you turn off cookies, websites can no longer build a profile of your browsing habits — which is why data brokers have less information to collect and sell about you.
The trade-off is real: many websites will ask you to log in every single time you visit, shopping carts will empty when you close the browser, and some sites may not load correctly or may refuse to let you in at all. You are choosing privacy over convenience.
There are three levels you can choose: blocking all cookies (most restrictive), blocking only third-party cookies (the middle ground), or blocking cookies from specific sites. Most people find the middle option workable — it stops advertisers from tracking you across websites while letting sites you actually use remember you.
Key Takeaways
- Disabling cookies prevents websites from storing tracking files, which reduces the data available to data brokers who buy and sell your information.
- You can block all cookies, only third-party cookies, or cookies from specific sites — each choice has different trade-offs for convenience.
- The steps to disable cookies differ by browser: Chrome, Firefox, Safari, and Edge each have their own settings menu.
- Disabling cookies does not erase cookies already on your device — you need to clear your browsing data separately to remove them.
- Some websites will not work properly or will refuse entry if you block all cookies, so testing your most-used sites first is worth doing.
How to disable cookies in 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. Click Cookies and other site data.
You will see three options. Allow all cookies is the default. Block third-party cookies stops advertisers from tracking you across sites but lets individual websites remember you. Block all cookies is the most restrictive and will break many websites. Most people choose the middle option.
If you want to block cookies from specific sites only, select Block third-party cookies, then scroll down to Sites that can always use cookies and Sites that cannot use cookies. Add the site addresses you want to control individually.
How to disable cookies in Firefox
Open Firefox and click the three horizontal lines in the top right corner. Select Settings, then click Privacy & Security in the left sidebar. Under Cookies and Site Data, you will see a checkbox that says Delete cookies and site data when Firefox is closed. Check this box if you want cookies removed every time you close the browser.
Below that, click the dropdown next to Enhanced Tracking Protection. Standard blocks third-party cookies and some trackers. Strict blocks more trackers but may break some websites. Custom lets you choose exactly what to block.
If you choose Custom, check the boxes for Tracking content and Third-party cookies. You can then add specific sites to an exception list if a website you use regularly stops working.
How to disable cookies in Safari
Open Safari and click Safari in the top menu bar. Select Settings (or Preferences on older versions). Click the Privacy tab.
Under Cookies and website data, you will see three options: Always block, Allow from websites I visit, and Always allow. Choose Allow from websites I visit to block third-party cookies while letting sites you use remember you. Choose Always block if you want maximum privacy, but expect many sites to stop working.
Safari does not have a built-in way to block cookies from specific sites only — you either block third-party cookies or you do not. If a site breaks, you will need to temporarily switch back to Always allow to use it.
How to 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. Under Cookies and other site data, you will see a dropdown menu.
The options are Allow all cookies, Block third-party cookies, and Block all cookies. Most people choose Block third-party cookies. Below the dropdown, you can add specific sites to Clear browsing data or Allow lists if you need to control individual websites.
Clearing cookies you already have
Disabling cookies stops new ones from being stored, but it does not remove the ones already on your device. You need to clear your browsing data separately.
In Chrome: click the three dots, select Delete browsing data, make sure Cookies and other site data is checked, and click Delete data. In Firefox: click the three lines, go to Settings > Privacy & Security, scroll to Cookies and Site Data, and click Clear Data. In Safari: click Safari > Settings > Privacy, then click Manage Website Data and Remove All. In Edge: click the three dots, select Delete browsing data, check Cookies and other site data, and click Delete now.
You can set your browser to clear cookies automatically every time you close it. In Chrome and Edge, this is in the same menu where you disable cookies. In Firefox, check Delete cookies and site data when Firefox is closed under Privacy & Security. In Safari, go to Privacy and look for Remove all website data when quitting Safari.
What happens when you disable cookies
Websites will ask you to log in more often because they cannot remember you between visits. Shopping carts will empty when you close your browser. Some sites may load slowly or show you broken layouts because they rely on cookies to function. A small number of websites will refuse to let you in at all until you turn cookies back on.
The upside is that advertisers cannot follow you across the internet, and data brokers have less information about your browsing habits to buy and sell. If you block only third-party cookies instead of all cookies, most sites will work normally while you still get meaningful privacy protection.
If a site you use regularly stops working, you have two choices: add it to your browser's exception list so it can use cookies, or temporarily switch your cookie setting back to allow all cookies. Neither choice is permanent — you can change it back anytime.
Frequently Asked Questions
Will disabling cookies hide my activity from my internet service provider?
No. Your internet service provider can see every website you visit regardless of your cookie settings, because they control the connection itself. Disabling cookies only stops websites and advertisers from tracking you — it does not hide your activity from your ISP or your employer if you are using their network.
Do I need to disable cookies if I use a VPN?
A VPN hides your location and IP address from websites, but it does not stop cookies from tracking you. Disabling cookies and using a VPN are separate protections that work on different parts of your activity. You can use both at the same time for more privacy.
What is the difference between first-party and third-party cookies?
First-party cookies are set by the website you are visiting — they remember your login and your preferences on that site. Third-party cookies are set by advertisers and data brokers who embed tracking code on many different websites. Blocking third-party cookies stops most tracking while letting individual sites remember you.
If I clear my cookies, will I lose my saved passwords?
No. Passwords are stored separately from cookies. When you clear cookies, your saved passwords stay in your browser's password manager. You may need to log in again because the site cannot remember you, but your passwords themselves are not deleted.
Can websites tell if I have cookies disabled?
Yes, websites can detect that you have cookies disabled, and some will refuse to load or will show you a message asking you to turn them on. If this happens, you can add that site to your browser's exception list so it can use cookies, or you can temporarily change your cookie setting for that session only.