How to Clear Cache on Firefox - Firefox

To clear cache on Firefox, open the browser and press Ctrl+Shift+Delete on Windows or Linux, or Command+Shift+Delete on macOS. This opens the Clear Recent History window instantly.

In the dropdown menu labeled "Time range to clear," select your preferred timeframe. Options include the last hour, two hours, four hours, or everything. For a complete cache removal, choose "Everything."

Selecting What to Delete

Check the box next to "Cache" to ensure cached files are selected. Additional options appear below, including cookies, browsing history, and site preferences. You can clear cache alone or combine it with other data types. Uncheck items you want to preserve.

Click the blue "Clear Now" button to complete the process. Firefox removes all selected cached data immediately.

Automatic Cache Clearing

Firefox also allows automatic cache clearing each time you close the browser. Access this setting through the main menu (three horizontal lines) > Settings > Privacy & Security. Scroll to the "Cookies and Site Data" section and check "Delete cookies and site data when Firefox is closed." This option clears cache automatically without manual intervention.

The cache stores temporary files, images, and website data to speed up page loading on repeat visits. Clearing cache on Firefox regularly improves performance, frees disk space, and enhances privacy by removing browsing traces.

Firefox 148.0.2 maintains these clearing functions across Windows, macOS, and Linux platforms identically. The browser's privacy-focused design, developed independently by Mozilla since 2002, emphasizes user control over stored data.

For optimal results, clear cache on Firefox monthly or whenever you notice slower browsing speeds. This simple maintenance task takes seconds and provides measurable improvements to browser responsiveness.