Windows 10Mozilla Firefox
Guide to Clearing Mozilla Firefox Cache on Windows 10
Follow these 5 steps to clear Mozilla Firefox cache on your Windows 10
Is Mozilla Firefox on your Windows 10 computer loading slowly or displaying outdated content? Clearing the browser cache is one of the fastest fixes. Your Windows 10 system stores temporary browser files to speed up web browsing, but over time this cache can cause problems. Follow the instructions below to clear the Mozilla Firefox cache on Windows 10.
1
Open Firefox Settings
Click the hamburger menu (☰) in the top-right corner, then click "Settings".
←→
example.com
☰
New Tab
New window
History
Downloads
Settings
2
Go to Privacy & Security
In the left sidebar, click "Privacy & Security".
Settings
General
Home
Search
Privacy & Security
Privacy & Security
3
Find Cookies and Site Data
Scroll down to the "Cookies and Site Data" section and click "Clear Data…".
Cookies and Site Data
Clear Data…
4
Select Cached Web Content
Make sure "Cached Web Content" is checked. You can uncheck "Cookies and Site Data" if you only want to clear the cache.
Clear browsing data
Time range:All time ▾
Clear
5
Click Clear
Click the "Clear" button to remove the cached data. Confirm if prompted.
Clear browsing data
Time range:All time ▾
Clear
Frequently Asked Questions
How do I clear Mozilla Firefox cache on Windows 10?
To clear Mozilla Firefox cache on Windows 10, open the browser settings or use a keyboard shortcut, navigate to the clear browsing data section, select cached images and files, and click clear. Follow our step-by-step instructions above.
Will clearing Mozilla Firefox cache on Windows 10 delete my passwords?
No. Clearing the cache on your Windows 10 only removes temporary website files like images and scripts. Your saved passwords in Mozilla Firefox are stored separately and won't be affected. Just make sure you only select 'Cached images and files' and leave 'Passwords' unchecked.
How often should I clear Mozilla Firefox cache on my Windows 10?
For most Windows 10 users, clearing the Mozilla Firefox cache every 2-4 weeks is a good routine. If you browse frequently or notice slow performance, you might want to clear it more often. There's no harm in clearing the cache — it's a safe and routine maintenance step.
Will clearing cache speed up Mozilla Firefox on my Windows 10?
Yes, clearing the cache can often improve Mozilla Firefox's speed on your Windows 10, especially if the cache has grown large or contains corrupted files. After clearing, the first page loads may be slightly slower as resources are re-downloaded, but overall performance usually improves.
Is it safe to clear Mozilla Firefox cache on Windows 10?
Absolutely. Clearing the Mozilla Firefox cache on your Windows 10 is completely safe. It only removes temporary files — your bookmarks, passwords, browsing history, and personal data remain untouched. It's a routine maintenance task recommended by tech professionals.
Will I be logged out of websites after clearing Mozilla Firefox cache on Windows 10?
If you only clear the cache (cached images and files) in Mozilla Firefox, you will NOT be logged out. However, if you also clear cookies and site data, you will be logged out of most websites. When clearing, only check the cache option to stay logged in.
What does Mozilla Firefox cache on my Windows 10 actually store?
The Mozilla Firefox cache on your Windows 10 stores temporary copies of website resources — images, CSS stylesheets, JavaScript files, fonts, and other web content. This allows Mozilla Firefox to load previously visited pages faster by using local copies instead of downloading everything again.
How much storage does Mozilla Firefox cache use on Windows 10?
The Mozilla Firefox cache size on your Windows 10 varies based on your browsing habits, but it typically ranges from a few hundred megabytes to several gigabytes. Heavy browsing and visiting media-rich sites increases cache size. Clearing the cache is an easy way to reclaim storage space.
Can I clear Mozilla Firefox cache for just one website on Windows 10?
In some cases, yes. On desktop versions of Mozilla Firefox, you can clear cache for specific sites through developer tools or site settings. On mobile, the options may be more limited. For the most reliable fix, clearing the entire Mozilla Firefox cache is recommended.
What's the difference between cache and cookies in Mozilla Firefox on Windows 10?
On your Windows 10, the Mozilla Firefox cache stores website files (images, scripts) for faster loading, while cookies store data like login sessions and preferences. Clearing cache helps fix display issues; clearing cookies logs you out of sites. These can be cleared independently.
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