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Clearing a Web Browser's Cookies, History, and Cache (Firefox)

Web browsers use a small portion of your local computer's storage to save page elements of visited sites in your web browser's history.  This behavior helps your web browser to load pages more efficiently, but sometimes browsers may pull up cached pages, and not the most recent version of the page. Clearing this information can also help improve your web browser's performance.

Clearing Cookies, History, and Cache in Mozilla Firefox

This process is the same for both Mac and Windows versions.

To clear cookies, history, and cache in Mozilla Firefox,

  1. Click on the Open Menu button (the button with the three horizontal lines) on the right edge of the screen by the address bar.
  2. Click on the Preferences link.

Clearing History, Part 2

Preferences
  1. On the left, click on the link labeled Privacy and Security.
  2. Scroll down until you see Cookies and Site Data.
  3. Click the Clear Data button.

Clearing History, Part 3

Image of the Clear Data dialog box

You will now see a dialog box labeled Clear Data. Check the checkboxes labeled Cookies and Site Data and Cached Web Content. When finished Click the Clear button to clear browsing data.

Clearing History, Part 4

Image of clear all cookies and site data dialog box

You will now see a dialog box asking if you want to confirm your choice. Select the Clear Now button to clear the browsing data.