In Chrome
    1. On your computer, open Chrome.
    2. At the top right, click More.
    3. Click More tools.
    4. Clear browsing data.
    5. At the top, choose a time range.
    6. To delete everything, select All time.
    7. Next to "Cookies and other site data" & "Cached images and files"
    8. Click Clear data.

In Firefox

  1. In the Menu bar at the top of the screen
  2. Click Firefox and select Preferences
  3. Select the Privacy & Security panel
  4. In the Cookies and Site Data section
  5. Click Clear Data
  6. Remove the check mark in front of Cookies and Site Data
  7. With Cached Web Content check marked click the Clear button.

In Safari

  1. Click the Safari menu.
  2. Select Empty Cache.
  3. Click Empty.
  4. Safari 3.x for Windows.
  5. Click the Edit menu.
  6. Select Empty Cache.
  7. Click Empty.