What cookies are and why you might want to clear them

Cookies are small files that websites store on your phone to remember information about you — your login details, what you put in a shopping cart, sites you've visited. Most of the time they're harmless and make browsing faster. But they can also track your activity across the web, take up storage space, or cause a website to load incorrectly if the stored data gets corrupted.

Clearing cookies won't delete your passwords or break your accounts (unless you also clear saved passwords, which is a separate step). It just removes the stored data websites have collected. You'll notice you have to log back into some sites, and personalized recommendations might disappear temporarily.

The steps differ depending on which browser you use — Chrome, Firefox, Samsung Internet, or another app — because each one stores and manages cookies in its own way. This guide covers the most common browsers on Android.

Key Takeaways

  • Chrome, Firefox, and Samsung Internet all have a "Clear browsing data" or similar option in their settings menu.
  • You can clear all cookies at once or set your browser to clear them automatically every time you close the app.
  • Clearing cookies will log you out of most websites, but it won't delete your saved passwords unless you specifically choose that option.
  • If a website isn't working properly, clearing cookies for just that site is often faster than clearing everything.

How to clear cookies in Chrome

Open Chrome and tap the three vertical dots in the top right corner. Scroll down and tap Settings. Tap Privacy and security, then tap Clear browsing data.

A popup will appear with options at the top. Make sure Cookies and site data is checked. The time range dropdown (usually set to "All time") controls how far back to clear — you can choose "Last hour", "Last 24 hours", "Last 7 days", "Last 4 weeks", or "All time". Select the range you want, then tap Clear data.

If you want Chrome to clear cookies automatically every time you close the app, go back to Settings > Privacy and security and toggle on Clear cookies and site data when you close Chrome. This is useful if you use shared devices or want minimal tracking, but you'll stay logged out of sites between sessions.

How to clear cookies in Firefox

Open Firefox and tap the three horizontal lines (menu button) at the bottom right. Tap Settings. Scroll down and tap Delete browsing data.

You'll see checkboxes for different data types. Make sure Cookies is checked. The other options (cache, history, site permissions) are unchecked by default — leave them that way unless you want to clear those too. Tap Delete browsing data at the bottom to clear immediately.

To set Firefox to clear cookies automatically, go back to Settings and tap Delete browsing data on quit. Toggle it on, then tap Browsing data and make sure Cookies is checked. Firefox will then clear cookies every time you fully close the app.

How to clear cookies in Samsung Internet

Open Samsung Internet and tap the three horizontal lines at the bottom right. Tap Settings. Tap Privacy, then tap Delete browsing data.

Check the box next to Cookies and site data. You can also choose a time range using the dropdown at the top — the options are the same as Chrome (Last hour, Last 24 hours, Last 7 days, Last 4 weeks, All time). Tap Delete to clear.

To clear cookies automatically on exit, go back to Settings > Privacy and toggle on Delete cookies and site data when closing the browser. This setting applies to all cookies, not just new ones.

How to clear cookies for a single website

If only one site is misbehaving, you don't need to clear all your cookies. In Chrome, visit the website, tap the lock icon or info icon to the left of the address bar, tap Cookies and site permissions, then tap Manage. Find the site in the list and tap the trash icon next to it.

In Firefox, tap the menu button, go to Settings > Privacy, scroll to Cookies, and tap Manage cookies. Search for the site name, select it, and tap Remove. Samsung Internet doesn't have a per-site cookie manager in the same way, so you'll need to clear all cookies or use the time-range option to clear recent ones.

What happens after you clear cookies

You'll be logged out of most websites. The next time you visit a site that required a login, you'll see the login screen again. Your saved passwords won't be affected — if you saved your password in the browser, you can usually tap the password field and select it from the dropdown to log back in quickly.

Websites that personalize your experience (like YouTube recommendations or shopping sites showing items you viewed) will reset. They'll start learning your preferences again as you browse. Some sites may load slightly slower the first time you visit after clearing cookies because they have to rebuild their stored data.

If you cleared cookies because a site wasn't working, try visiting it again. Most of the time, the fresh start fixes the problem. If it doesn't, try clearing the site's cache as well (usually in the same menu as cookies), or contact the website's support.

Frequently Asked Questions

Will clearing cookies delete my saved passwords?

No. Cookies and saved passwords are stored separately. When you clear browsing data, you'll see checkboxes for both — cookies and passwords are usually in different sections. You have to uncheck passwords to keep them, or check them if you want to delete them. By default, most browsers only clear cookies when you use the "Clear browsing data" option.

Can I clear cookies from just one app instead of all of them?

Each browser app manages its own cookies separately, so clearing cookies in Chrome won't affect Firefox or Samsung Internet. If you use multiple browsers, you'll need to clear cookies in each one individually. There's no system-wide cookie manager on Android that clears them across all apps at once.

What's the difference between clearing cookies and clearing cache?

Cookies are small data files websites use to remember you. Cache is larger files (images, scripts, pages) that your browser stores to load sites faster next time. Clearing cache frees up more storage space but doesn't log you out of sites. Clearing cookies logs you out but doesn't affect how fast pages load. You can clear either one separately or both together.

Why does a website keep asking me to accept cookies after I clear them?

Websites show cookie consent notices because they're required by law in many places. Clearing cookies removes your previous choice, so the site shows the notice again. If you accept cookies again, the site will remember your choice until you clear cookies once more. This is normal behavior.

Is it safe to clear cookies on a shared device?

Yes. Clearing cookies removes stored data but doesn't damage your device or accounts. You'll just be logged out of websites. If you use a shared device, clearing cookies regularly is actually a good privacy practice — it prevents the next person from accessing your accounts. Just remember you'll need to log back in to your own accounts the next time you use them.