Slow internet on your Android phone? Time to clear those cookies and cache

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Every so often, it’s good practice to clear the cache of your phone’s web browser and remove cookies. Pictured here is the Galaxy S21.


Sarah Tew/CNET

Whether you use Firefox, Samsung Internet or Google Chrome to browse the web on your Android phone, you might notice some lag from time to time — even when your internet connection is perfectly fine. If you’ve got a slow-loading browser on your hands, there’s a likely culprit to consider: data. With practically every website you visit, your browser collects data. This can be helpful; for example, it can mean your browser loads your frequently visited sites faster. But if all this data collecting goes unchecked for long enough, it can clog up your cookies and cache, leading to an agonizingly slow browsing experience.

Cookies can also be used by websites to track your browsing history, often with the intention of serving personalized advertising nearly everywhere you go. (I’ve recently been seeing ads for eyeglasses after visiting a few online stores to compare prices and styles.)

Plus, the larger your browser’s cache, the more bloated your browser app becomes with data from websites you might not even be visiting anymore — and yet some of their assets and possibly a few tracking cookies could be sitting in there.

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Brett Pearce/CNET

So it doesn’t hurt to occasionally clear this data out in order to keep your web browser lean, running efficiently and, ideally, storing as few tracking cookies as possible.

On Android, the steps differ slightly depending on the type of phone and web browser app you’re using, so below we’ll go over how to clear this data on Google’s Chrome (often the default for many Android phones like the Google Pixel line), Samsung’s Internet browser (often the default on the Galaxy phone series) and Mozilla’s Firefox browser. You can also check out our separate guide on how to clear your cache on an iPhone web browser in case you have a few Apple devices to clear out, too.

Google Chrome

You can delete your cookies and cache from within the Android version of Google Chrome by first tapping the More button in the top right corner of the browser, indicated by a column of three dots, then tapping History, then Clear browsing data. You can also access this from the Chrome Settings menu, tapping Privacy and Security and then Clear browsing data.

Chrome also offers Basic and Advanced settings for clearing your Browsing history, Cookies and site data and Cached images and files. You can use the Time range drop-down to select whether you want to delete the entire history or a selection of anywhere from the past 24 hours up to the last four weeks. Tapping Advanced will also give you access to deleting Saved passwords, Autofill form data and Site settings. After selecting what you want to delete, tap the blue Clear data button, and it will then delete without any other prompts, so just make sure you’re zapping exactly what you want to zap.

Read moreDitch Google Chrome and use this privacy-focused browser instead

Samsung Internet

Unlike with Google Chrome, Samsung’s process for deleting your cache and cookie data involves a visit to your phone’s settings app, as opposed to opening Samsung’s Internet browser app.

After opening Settings, tap on Apps, then scroll down to and tap Samsung Internet. Then tap Storage.

At the bottom of Storage, you get separate options to Clear cache and Clear data. Tapping Clear cache will immediately delete the cache, but Clear data brings up a prompt that warns you that all of the application’s data will be deleted permanently, including files, settings, accounts and databases. While it doesn’t specify cookies, this more nuclear approach should zap all remaining data, letting you restart the Samsung Internet browser as if it were brand-new.

Read more: Change these Android settings to get the most out of your phone

Mozilla Firefox

Much as with Google Chrome, you can clear the cookies and cache from within the Mozilla Firefox Android app. To access this function, tap the More button on the right of the address bar, again symbolized by three vertically aligned dots. Then tap Settings and scroll down to Delete browsing data.

Of the three browsers we’re discussing here, Firefox gives you the most options under the Delete browsing data menu, allowing you to also delete any existing Open tabs, your Browsing history and site data, Site permissions and even your Downloads folder alongside Cookies and Cached images and files.

While you can’t pick a time range as you can for Chrome, you can be more specific regarding what type of data you would like to remove, differing from Samsung’s deleting everything when perhaps you just want to delete the cookies.

And Firefox has an additional option for those who never want to keep their browsing data after they’re done using the app. Inside of Settings is a Delete browsing data on quit option, which instructs Firefox to wipe any combination of these same settings every time you quit the application. It’s a useful feature if you’d like to keep the browser tidy and, say, avoid accidentally handing off your browser history to someone who may have stolen or otherwise gained access to your phone.

For more, check out everything to know about Google’s new operating system, Android 12, including how to check when your phone will get the update and how to download. Also, take a look at CNET’s list of the best Android apps.

How often do you clear your browser’s cache and cookies? And do you have a favorite Android browser that should get added to this Tech Tip? Tell us in the comments.

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