What cache and cookies do, and why clearing them matters for privacy
Cache is a folder on your computer where your browser stores copies of web pages, images, and files you've visited. Cookies are small text files that websites place on your device to remember information about you — your login details, what you put in a shopping cart, sites you've visited, and sometimes your location or browsing habits.
When you clear cache and cookies, you're removing the record of where you've been and what you've done online. This is different from removing your information from data broker websites — those companies have already collected and stored your data on their servers. Clearing your local cache and cookies stops your own browser from holding onto that trail, which means websites can't use stored information to track you across visits or sell that tracking data to third parties.
Data brokers often use cookies and tracking pixels to follow your movement across the web and build profiles about you. Clearing these regularly makes that tracking harder, though it won't stop brokers who already have your information. Think of it as closing a door on your device while you're also working to get your name off the lists they've already built.
Key Takeaways
- Cache stores copies of pages and images; cookies store information websites want to remember about you — clearing both removes the local record of your browsing.
- The steps to clear cache and cookies differ by browser: Chrome, Firefox, Safari, and Edge each have their own menu path and options.
- You can set your browser to clear cache and cookies automatically when you close it, which requires no ongoing action from you.
- Clearing cache and cookies stops local tracking but does not remove your information from data broker databases — you need to contact those companies separately.
How to clear cache and 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 menu. Choose Clear browsing data.
A window will open with a time range dropdown at the top. Select All time to clear everything, or choose a specific range like Last 24 hours or Last 7 days. Make sure the boxes next to Cookies and other site data and Cached images and files are both checked. Click Clear data.
To make this happen automatically, go back to Settings > Privacy and security and scroll down to Clear browsing data. Toggle on Clear cookies and site data when you quit Chrome. Chrome will now delete these files every time you close the browser completely.
How to clear cache and 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 menu. Under Cookies and Site Data, click Clear Data.
A window will appear. Make sure both Cookies and Site Data and Cached Web Content are checked. Click Clear. Firefox will clear everything from your entire browsing history by default.
To automate this, stay in Settings > Privacy & Security and look for the Cookies and Site Data section. Check the box next to Delete cookies and site data when Firefox is closed. Firefox will now clear these files automatically each time you shut down the browser.
How to clear cache and cookies in Safari
Open Safari and click Safari in the top menu bar. Select Settings (or Preferences on older versions), then click the Privacy tab. Click Manage Website Data.
A list of websites will appear. To remove all of them at once, click Remove All. To remove specific sites, select them and click Remove. Click Done when finished.
To clear cached files, go back to the Safari menu and select Empty Cache. For automatic clearing, there is no built-in Safari option to delete cookies on exit, but you can use Safari's Privacy settings to limit cookie storage to visited websites only instead of all websites, which reduces tracking.
How to clear cache and cookies in Microsoft Edge
Open Edge and click the three horizontal dots in the top right corner. Select Settings, then click Privacy, search, and services in the left menu. Under Clear browsing data, click Choose what to clear.
A window will open. Select All time from the time range dropdown. Check both Cookies and other site data and Cached images and files. Click Clear now.
To set this to happen automatically, go back to Settings > Privacy, search, and services and toggle on Clear browsing data under the Clear browsing data section. Choose whether you want Edge to clear data Every time you close the browser or on a schedule. Select which data types to clear automatically — make sure Cookies and other site data and Cached images and files are both enabled.
Setting up automatic clearing so you don't have to remember
The easiest way to stay on top of cache and cookie clearing is to set your browser to do it for you. Every major browser has an option to clear these files automatically when you close it. Once you turn this on, you don't have to think about it again — it happens in the background every single time.
The trade-off is that some websites will load slightly slower on your first visit after clearing, because your browser has to read fresh copies of images and files instead of using stored versions. You may also have to log back into accounts more often, since cookies that store login information get deleted too. For most people, this small inconvenience is worth the privacy gain.
If you want to keep cookies for sites you visit regularly but clear everything else, most browsers let you create exceptions. In Chrome, Firefox, and Edge, you can go to your privacy settings and add specific websites to a list that won't be cleared. This way you stay logged into your email or banking site while everything else gets wiped.
What clearing cache and cookies does and doesn't do
Clearing cache and cookies removes the record your browser keeps of where you've been and what you've done. It stops websites from using stored cookies to recognize you on return visits, and it removes the local copies of pages and images that track your activity. This makes it harder for advertisers and data brokers to follow your movement across the web using your device.
What it does not do is remove your information from data broker databases. If a company like Spokeo, BeenVerified, or Whitepages already has your name, address, phone number, and browsing history on file, clearing your cache and cookies won't touch that. You still need to contact those companies directly and request removal — clearing your browser is one layer of privacy protection, not a complete solution.
It also doesn't hide your activity from your internet service provider, your employer if you're on a work network, or websites themselves. Those entities see your traffic regardless of what's stored on your device. For that level of protection, you would need a VPN or other network-level tools, which is a separate decision with its own trade-offs.
Frequently Asked Questions
Will clearing cache and cookies log me out of everything?
Yes, clearing cookies will log you out of most websites because login information is stored in cookies. You'll need to log back in the next time you visit. If you set your browser to clear cookies automatically on exit, expect to log in again after each session. You can prevent this by adding frequently-used sites to your browser's exception list so their cookies are preserved.
Does clearing cache make my passwords less find?
No. Passwords stored in your browser's password manager are separate from cache and cookies. Clearing cache and cookies does not affect saved passwords. If you want to clear saved passwords too, that's a separate option in your browser settings that you have to choose explicitly.
How often should I clear cache and cookies?
If you set your browser to clear automatically on exit, you don't need to do anything — it happens every time you close the browser. If you prefer to clear manually, once a week or once a month is reasonable for most people. The more often you clear, the less data brokers can collect about your browsing patterns, but the more often you'll need to log back into sites.
Will clearing cache and cookies stop data brokers from tracking me?
It will make tracking harder by removing the local record they can access through your browser, but it won't stop brokers who already have your information or who track you through other methods like IP address matching. Clearing cache and cookies is one privacy step; removing your information from broker websites is a separate step you need to take directly with those companies.
What's the difference between clearing cache and clearing cookies?
Cache stores copies of images, videos, and web pages to make sites load faster. Cookies store information websites want to remember about you, like login details and preferences. You can clear one without the other, but for privacy it's best to clear both. Most browsers let you choose which types of data to clear in the same menu.