How to Clear Cache in Firefox - Firefox

Open Firefox, press Ctrl+Shift+Delete (or Cmd+Shift+Delete on Mac) to access the Clear Recent History window instantly.

This keyboard shortcut bypasses menus entirely. The Clear Recent History dialog appears immediately. You'll see a dropdown menu labeled "Time range for clearing" at the top. Select your preferred timeframe: Last Hour, Last Two Hours, Last Four Hours, Today, or Everything.

Choose What to Clear

Under "Details," check the box next to "Cache." You can also clear cookies, browsing history, and other data simultaneously. Firefox lists all available options. Most users clear cache along with cookies for complete privacy. The cache stores temporary files from websites you visit.

Clearing it regularly improves browser performance and frees storage space.

Complete the Process

Click the blue "Clear Now" button. Firefox processes the request within seconds. A confirmation message briefly appears. Your cache is now empty.

Alternatively, use the menu method: Click the hamburger icon (three lines) in the top right, select Settings, navigate to Privacy & Security, scroll to "Cookies and Site Data," and click "Clear Data." Choose "Cached Web Content," then confirm.

Why Clear Cache Regularly

Cached files accumulate over time. They occupy disk space and sometimes cause loading issues on updated websites. Clearing cache monthly keeps Firefox running smoothly. Firefox version 148.0.2 performs this task quickly across Windows, macOS, and Linux platforms.

Pro tip: Enable automatic cache clearing on exit. Go to Settings > Privacy & Security, find "Cookies and Site Data," and check "Clear cookies and site data when Firefox is closed." Firefox then clears cache automatically each time you shut down the browser.

The keyboard shortcut method (Ctrl+Shift+Delete) remains fastest for manual cache clearing anytime.