Whenever you browse the web in Firefox, the browser stores website data including cookies so that it doesn't have to do so again each time you revisit a site. In theory this should speed up your browsing experience, but there are some scenarios where you might want to clear the cache and start anew. Keep reading to learn how it's done on Mac, iPhone, and iPad.

mozilla firefox banner
There are a couple of situations where you might benefit from clearing Firefox's cache. If a site you regularly frequent has elements that have stopped working, or if a site has stopped loading completely, there may be a conflict between an older version of it that Firefox has cached and a newer one.

Or perhaps you simply want to protect your privacy by wiping the slate clean and removing all the data associated with websites you've visited, including any user-identifying cookies. Either way, here's how it's done on macOS and iOS.

How to Clear Firefox's Cache on Mac

  1. Launch Firefox on your Mac and click the Open menu icon (three lines in a column) in the top-right corner of the browser window, then choose Preferences.
    firefox

  2. Click Privacy & Security in the left column, then scroll down to "History" and click the Clear History... button.
    firefox

  3. Select a Time range to clear option from the dropdown, then check the boxes against the information that you want to remove and click OK.
    firefox

How to Clear Firefox's Cache on iOS

  1. Launch Firefox on your ‌iPhone‌ or ‌iPad‌ and tap the menu icon (three lines in a column) in the bottom-right corner of the screen.
  2. Tap Settings.
    firefox

  3. Under "Privacy," select Data Management.
  4. Toggle the switches against the data types that you want to clear, then tap Clear Private Data.firefox

Note that in the last screen, you can tap Web Site Data to see a breakdown of sites that Firefox holds data for, and you can remove sites individually by tapping the red minus button beside each one. For a more privacy-centric browser on iOS, consider using Firefox Focus.

Popular Stories

iPhone 17 Pro Colors

Apple Announces iPhone 17 Pro and Pro Max With New Design, Larger Battery, and More

Tuesday September 9, 2025 10:59 am PDT by
Apple today introduced the iPhone 17 Pro and iPhone 17 Pro Max. Both devices feature a new aluminum unibody design, with the Ceramic Shield now protecting both the front and back sides. Apple says the front side is now Ceramic Shield 2, which offers 3x better scratch resistance, while the rear Ceramic Shield is advertised as 4x more resistant to cracks compared to the back glass on previous...
iPhone 17 Pro Colors

iPhone 17 and iPhone 17 Pro Models Are eSIM-Only in These Countries

Tuesday September 9, 2025 12:23 pm PDT by
Apple continues to phase out the physical SIM card tray on iPhones, with the latest models relying solely on eSIM technology in more countries. The new iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max support eSIMs only in these countries and regions, according to Apple: Bahrain Canada Guam Japan Kuwait Mexico Oman Qatar Saudi Arabia United Arab Emirates Un...
airpods translate

AirPods Live Translation Blocked for EU Users With EU Apple Accounts

Thursday September 11, 2025 4:01 am PDT by
Apple's new Live Translation feature for AirPods will be off-limits to millions of European users when it arrives next week, with strict EU regulations likely holding back its rollout. Apple says on its feature availability webpage that "Apple Intelligence: Live Translation with AirPods" won't be available if both the user is physically in the EU and their Apple Account region is in the EU....
iPhone 17 Pro Colors

iPhone 17 and iPhone 17 Pro: Release Date and Pre-Orders

Wednesday September 10, 2025 12:30 am PDT by
Apple held its annual iPhone event on Tuesday, September 9, to unveil the iPhone 17, ultra-thin iPhone Air, iPhone 17 Pro, and iPhone 17 Pro Max. All of the new iPhone models will be available to pre-order starting Friday, September 12 at 5 a.m. Pacific Time / 8 a.m. Eastern Time in the U.S. and dozens of other countries, according to Apple. The release date for the devices is one week...
iPhone 17 Pro Cosmic Orange

Skipping the iPhone 17 Pro? Here's What's Rumored for iPhone 18 Pro

Wednesday September 10, 2025 8:33 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are still a year away, there are already a few rumors about the devices that offer an early look ahead. If you are skipping the iPhone 17 Pro and want to know about what to expect from the iPhone 18 Pro models, we have recapped a few of the key rumors below. Under-Screen Face ID In April 2023, display industry analyst Ross Young shared a...
better iphone 17 lineup

Apple Lists iPhone 17, iPhone Air, and iPhone 17 Pro Battery Capacities

Tuesday September 9, 2025 1:25 pm PDT by
Apple has confirmed the battery capacities for the iPhone 17, iPhone Air, iPhone 17 Pro, and iPhone 17 Pro Max models that were announced earlier today. Apple is required to publish energy labels on its iPhone product pages in the EU, and they reveal the official mAh battery capacities for the devices. Here are the battery capacities for each model, according to Apple: iPhone 17:...
iPhone 17 Pro Colors

Didn't Pre-Order a New iPhone Yet? Here's How Long the Wait is Now

Friday September 12, 2025 6:11 am PDT by
iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air pre-orders began at 5 a.m. Pacific Time in the U.S. and many other countries today. If you have yet to place a pre-order, you might face a longer wait now, depending on your desired configuration. As of shortly after 6 a.m. Pacific Time today, nearly all iPhone 17 Pro Max configurations on Apple's online store in the U.S. are facing ...