How to Clear Cache on Firefox: Desktop, Android, iOS

If you’re looking to clear or delete cache on Firefox, whether on your Windows or Mac computer, your Android or iOS mobile device, or just for a single site, we’ve got you covered.

Follow the straightforward steps we’ve outlined below for the device or browser you’re looking to clear.

Note that you have the option to clear the cache for a specific site, or choose to only clear cache for a certain timeframe like the last hour up to “All time.” This means you will clear any cache stored in Firefox during that period.

Clear Cache on Firefox – Windows & Mac

To clear the Firefox cache on your Windows or Mac computer, you have two main options. Both achieve the same end result.

Using Firefox Options

  1. Open Firefox: Launch Mozilla Firefox on your computer.
  2. Access Options:
    • Click on the three horizontal lines in the upper-right corner of the browser window to open the menu.
    • Select “Options” or “Preferences.”
  3. Privacy and Security:
    • In the sidebar, click on “Privacy & Security.”
  4. Clear Browsing Data:
    • Scroll to “Cookies and Site Data.”
    • Click on “Clear Data…”
  5. Select Time Range:
    • In the pop-up window, choose the time range for which you want to clear cache. To delete all cache, select “All time.”
  6. Select Data to Clear:
    • Check the box next to “Cached Web Content.” You can also select other types of data you want to clear, such as browsing history or cookies.
  7. Clear Data:
    • Click on the “Clear” button.

Using the Address Bar

  1. Open Firefox: Launch Mozilla Firefox on your computer.
  2. Access Clear Browsing Data Directly:
    • Type about:preferences#privacy in the address bar and press Enter.
  3. Follow Steps 4-7 from Above:
    • Select the time range and the types of data you want to clear, then click “Clear.”

Deleting Cache on Firefox for One Site

If you don’t want to clear all your Firefox cache, you can also use Firefox’s developer tool to delete specific cache only. Here’s how:

Using Firefox’s Developer Tools (for Specific Cache)

  1. Open Firefox: Launch Mozilla Firefox on your computer.
  2. Open Developer Tools:
    • Right-click on the page and select “Inspect” or press Ctrl+Shift+I (Windows/Linux) or Cmd+Option+I (Mac).
  3. Navigate to the Network Tab:
    • In the Developer Tools pane, click on the “Network” tab.
  4. Clear Cache:
    • Refresh the page to populate the network requests.
    • Right-click in the list of network requests and select “Clear Browser Cache.”

Clear & Delete Firefox Cache on Android Phone

To clear cache in Mozilla Firefox on an Android device, follow these steps:

  1. Open Firefox:
    • Launch the Mozilla Firefox app on your Android device.
  2. Access Settings:
    • Tap on the three vertical dots in the upper-right corner to open the menu.
    • Select “Settings.”
  3. Privacy and Security:
    • Scroll down and tap on “Delete browsing data.”
  4. Select Time Range:
    • Choose the time range for which you want to clear cache. To delete all cache, select “All time.”
  5. Select Data to Clear:
    • Ensure that “Cached images and files” is checked. You can also select other types of data you want to clear.
  6. Clear Data:
    • Tap on “Delete data.”

Clear & Delete Firefox Cache on iPhone (iOS)

To clear cache in Mozilla Firefox on an iPhone, follow these steps:

  1. Open Firefox:
    • Launch the Mozilla Firefox app on your iPhone.
  2. Access Settings:
    • Tap on the menu icon, then tap “Settings.”
  3. Privacy:
    • Tap on “Data Management.”
  4. Clear Browsing Data:
    • Tap on “Clear Private Data.”
  5. Select Data to Clear:
    • Make sure that “Cache” is selected. You can also choose to clear other data types.
  6. Clear Data:
    • Tap on “Clear Private Data” at the bottom of the screen.

By following these steps, you should be able to effectively clear any cache on Firefox, whether it’s on your desktop, phone, or tablet. If you want to learn more about managing cookies on Firefox, check out our guide on how to clear cookies on Firefox. Additionally, if you need to enable cookies on Firefox for specific sites or in general, our article on how to enable cookies on Firefox provides step-by-step instructions.