Clearing Your Cache and Cookies

Clearing your cache is different than clearing your history. Here is how to clear your cache: ChromeFirefoxInternet Explorer 9 (or higher), SafariipadAfter clearing your cache, Mac users must fully quit the browser (not just close it), and Windows users should close all browser windows.

To completely avoid caching issues, consider using private/incognito windows.

This is how you open an incognito window in Chrome:


And this is how to do it in Firefox: 


Thank you for your understanding as we work though these issues. If you continue having sign-in problems, please contact our helpdesk at 


  1. In the browser bar, enter: chrome://settings/clearBrowserData
  2. Select the items you want to clear (e.g., Clear browsing history, Clear download history, Empty the cache, Delete cookies and other site and plug-in data).
  3. From the Obliterate the following items from: drop-down menu, you can choose the period of time for which you want to clear cached information. To clear your entire cache, select the beginning of time.
  4. Click Clear browsing data.



  1. From the Tools or History menu, select Clear Recent History.
  2. If the menu bar is hidden, press Alt to make it visible.
  3. From the Time range to clear: drop-down menu, select the desired range; to clear your entire cache, select Everything.
  4. Click the down arrow next to "Details" to choose which elements of the history to clear.
  5. Click Clear Now.

firefox cache

Internet Explorer 9

  1. Click Tools, and select Delete Browsing History... .
  2. Deselect Preserve Favorites website data, and select Temporary Internet files, Cookies, and History.
  3. Click Delete.



  1. In the Safari menu bar, click the Safari option.
  2. Select the Preferences link.
  3. In the Preferences window, click the Advanced tab.
  4. At the bottom of the window, select the Show Develop menu in menu bar checkbox.
  5. Return to the Safari menu bar and click the Develop option.
  6. Select the Empty Caches link.