What cookies are and why you might want to clear them

Cookies are small files that websites store on your computer to remember information about you — your login details, items in a shopping cart, your preferences, or sites you have visited. Most cookies are harmless and make browsing faster. But they also let advertisers track which websites you visit, and over time they can slow down your browser or use up storage space.

Clearing cookies removes these stored files. You will be logged out of most websites, and sites will no longer remember your preferences until you visit them again. If you have saved passwords in your browser, clearing cookies alone will not erase those — passwords are stored separately. The process takes less than a minute and works the same way on Windows, Mac, and Linux.

Key Takeaways

  • Clearing cookies logs you out of websites and removes tracking files, but does not delete your saved passwords unless you specifically choose to clear those too.
  • The fastest method is to use your browser's built-in settings: open the menu, find Privacy or History, and select "Clear browsing data" or "Clear cookies".
  • You can set your browser to clear cookies automatically every time you close it, so you do not have to do it manually.
  • Different browsers have slightly different menu names and locations, but the steps are nearly identical across Chrome, Firefox, Safari, and Edge.

Clearing cookies in Google Chrome

Open Chrome and click the three vertical dots in the top right corner. Select Settings from the menu. On the left side, click Privacy and security, then click Clear browsing data.

A window will pop up. At the top, make sure the time range is set to what you want — All time will clear every cookie on your computer, while Last hour, Last 24 hours, or Last 7 days will clear only recent ones. Check the box next to Cookies and other site data. You can leave the other boxes unchecked unless you also want to clear your browsing history or cached images. Click Clear data. The process finishes in a few seconds.

Clearing cookies in Mozilla Firefox

Open Firefox and click the three horizontal lines (the menu button) in the top right corner. Select Settings. On the left, click Privacy & Security. Under the Cookies and Site Data section, click the Clear Data button.

A small window appears. Make sure Cookies and Site Data is checked. Click Clear. Firefox will remove all cookies when ready. If you want to clear only cookies from a specific time period, go back to the main Privacy & Security page, scroll down to History, click Clear Recent History, set your time range, check Cookies, and click Clear Now.

Clearing cookies in Safari and Microsoft Edge

On a Mac using Safari, click Safari in the top menu bar, then select Settings. Click the Privacy tab. Click Manage Website Data, select all the entries (or individual ones), and click Remove. Then click Done.

In Microsoft Edge on Windows or Mac, click the three dots in the top right, select Settings, then click Privacy, search, and services on the left. Under Clear browsing data, click Choose what to clear. Set your time range, check Cookies and other site data, and click Clear now. Edge also has a quick option: press Ctrl + Shift + Delete (Windows) or Command + Shift + Delete (Mac) to open the clearing window directly.

Setting your browser to clear cookies automatically

You can tell your browser to delete cookies every time you close it, so you never have to clear them manually. In Chrome, go to Settings > Privacy and security > Clear browsing data. Toggle on Clear cookies and site data when you quit Chrome. In Firefox, go to Settings > Privacy & Security, scroll to Cookies and Site Data, and check Delete cookies and site data when Firefox is closed.

In Safari, click Safari > Settings > Privacy, then check Remove all website data when quitting Safari. In Edge, go to Settings > Privacy, search, and services, scroll to Clear browsing data, and toggle on Choose what to clear every time you close the browser. Once you turn this on, you will be logged out of most websites each time you close your browser, but you can stay logged in to sites you mark as exceptions.

What happens after you clear cookies

After clearing, websites will not remember you until you log back in or visit them again. Shopping sites will no longer show you items you looked at before. Ads may start showing you less targeted content because advertisers will not have your browsing history. Your browser may feel slightly faster if you had accumulated a large number of cookies.

If you saved passwords in your browser, they will still be there — clearing cookies does not touch them. If you want to remove saved passwords too, look for a Passwords or Autofill section in your browser settings and clear those separately. Some websites may ask you to log in again or re-enter preferences the next time you visit, which is normal.

Frequently Asked Questions

Will clearing cookies delete my saved passwords?

No. Cookies and passwords are stored in different places. Clearing cookies will log you out of websites, but your saved passwords remain in your browser. If you want to remove passwords, you must clear them separately through your browser's password settings.

Can I clear cookies from just one website?

Yes. In Chrome, Firefox, and Edge, you can click the lock icon or site information icon next to the website address in the address bar and select an option to clear data for that site only. In Safari, go to Develop > Empty Caches or use the Privacy settings to remove individual sites from the stored data list.

What is the difference between clearing cookies and clearing browsing history?

Browsing history is a list of websites you visited; cookies are files websites store on your computer. Clearing history removes the list, but cookies remain. Clearing cookies removes the stored files, but your browser may still remember you visited a site. Most browsers let you clear one or both at the same time.

Do I need to clear cookies regularly?

Not unless you want to. Cookies do not harm your computer and take up very little space. If you are concerned about tracking or privacy, clearing them weekly or monthly is reasonable. If you want them gone automatically, set your browser to clear them when you close it instead of doing it manually.

Will clearing cookies speed up my computer?

Slightly, but not noticeably in most cases. Cookies are very small files. If you have thousands of them accumulated over years, clearing them might free up a small amount of storage, but the real benefit is privacy — removing tracking data that advertisers use to follow your browsing.