Firefox 3.x - 7.x

  1. At the top of the Firefox window, click on the Firefox button, go over to the History menu and select Clear Recent History....
  2. Set Time range to clear to Everything.
  3. Click on the arrow next to Details to expand the list of history items.
  4. Select Cookies and make sure that other items you want to keep are not selected.
  5. Click Clear Now to clear the cookies and close the Clear Recent History window.

Firefox 2.0 - 3.x

  1. Open Firefox and go to Tools › Options.
  2. Click Privacy.
  3. Click the "Show Cookies" button and then click the Remove All Cookies button.

Firefox 1.5

  1. Open Firefox and go to Tools › Options.
  2. Click Privacy.
  3. View the "Cookies" tab and click the Clear Cookies Now (older versions of Firefox are very similar to these instructions).

Firefox 3.5.x

  1. Open Firefox and go to Firefox › Preferences.
  2. Click Privacy.
  3. Click the "remove individual cookies" link and then click the Remove All Cookies button.

Firefox 2.0 - 3.0.x

  1. Open Firefox and go to Firefox › Preferences.
  2. Click Privacy.
  3. Click the "Show Cookies" button and then click the Remove All Cookies button.

Firefox 1.5

  1. Open Firefox and go to Firefox › Preferences.
  2. Click Privacy.
  3. View the "Cookies" tab and click the Clear Cookies Now (older versions of Firefox are very similar to these instructions).

Firefox 3.x

  1. Open Firefox and go to Edit | Preferences.
  2. Click Privacy.
  3. Click the "Show Cookies" button and then click the Remove All Cookies button.