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How do I clear my web browser cache?

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User Notice: This guide is provided for reference only. Technical support will not be available except to the Brookhaven laboratory user community.

In order to speed up web browsing, web browsers are designed to download web pages and store them locally on your computer's hard drive in an area called "cache". The cache contains a kind of travel record of the items you have seen, heard, or downloaded from the Web, including images, sounds, Web pages, even cookies. Typically these items are stored in the Temporary Internet Files folder.

When you visit the same page for a second time, the browser speeds up display time by loading the page locally from cache instead of downloading everything again. This sometimes results in less than current versions of web pages being displayed.

You should periodically clear the cache to allow your browser to function more efficiently. If you believe that you have a less than current version of a page, please see the following steps listed below to clear the cache in your browser.
 

Windows Macintosh Android iPhone, iPod touch, iPad
Internet Explorer - download Safari - download Chrome Mobile Safari
Chrome - download Google Chrome - download Firefox  
Firefox - download Firefox - download    
Opera - download Opera - download    
Safari - download      

Clearing Browser Cache on Windows



Microsoft Internet Explorer 9.0+

  1. Open Internet Explorer.
  2. Click Tools in the left menu bar (if displayed) or click on the Gear icon in the right toolbar.
  3. Click Internet Options and choose the General tab.
  4. Click the Delete... button under the "Browsing History" section.
  5. Make sure you uncheck "Preserve Favorites website data" at the top of this window.
  6. Choose what elements to clear, but make sure Temporary Internet files and website files is checked.
  7. Click the Delete button.
     - Deleting files could take awhile if you have a lot of files and history.
  8. Click Apply, then OK to close window.

Direct Microsoft Support Page

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Google Chrome 35.0+

  1. Open Chrome.
  2. In the browser address bar, enter: chrome://settings/clearBrowserData
    Then Go to step 5.
  3. Or click the Three Lines icon in the top right of your browser.
  4. Select History, then click the Clear browsing data... button or select Settings, click Show Advanced settings... link at the bottom of the page, then click the Clear browsing data... button under the "Privacy" section.
  5. A pop-up should appear.
  6. Select the time range to clear (drop-down menu).
      - Select the beginning of time to clear all cache.
  7. Make sure Cached images and files is checked and any other elements you want to clear.
  8. Click Clear browsing data.
  9. Close Settings tab.

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Mozilla Firefox 30.0+

  1. Click the Three Lines icon in the top right of your browser.
  2. Select History, then select Clear Recent History.
  3. Select the time range to clear (drop-down menu).
      - Select the beginning of time to clear all cache.
  4. Click Details to choose what history elements to clear.
  5. Make sure Cache and Offline Website Data is checked and any other elements you want to clear.
  6. Click the Clear Now button.

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Opera 22.0+

  1. Open Opera.
  2. Click Opera in the upper left and select History.
  3. Click the Clear browsing data button in the upper right.
  4. Select the time range to clear (drop-down menu).
      - Select the beginning of time to clear all cache.
  5. Make sure Empty the Cache is checked and any other elements you want to clear.
  6. Click the Clear browsing data button.
  7. Close Settings and History tab.

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Safari 5.0+

  1. Open Safari.
  2. Click Tools in the left menu bar (if opened) or click on the Gear icon in the right toolbar.
  3. Select Reset Safari from the drop-down.
  4. Make sure Remove all website data (cookies & cache) is checked and any other elements you want to clear.
  5. Click the Reset button.

 

Clearing Browser Cache on Macintosh OS X



Safari 4.0+ (Mac)

  1. Open Safari.
  2. Click Tools in the left menu bar (if opened) or click on the Gear icon in the right toolbar.
  3. Select Reset Safari from the drop-down.
  4. Make sure Remove all website data (cookies & cache) is checked and any other elements you want to clear.
  5. Click the Reset button.

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Google Chrome 27.0+ (Mac)

  1. Open Chrome.
  2. In the browser address bar, enter: chrome://settings/clearBrowserData
    Then Go to step 5.
  3. Or click the Three Lines icon in the top right of your browser.
  4. Select History, then click the Clear browsing data... button or select Settings, click Show Advanced settings... link at the bottom of the page, then click the Clear browsing data... button under the "Privacy" section.
  5. A pop-up should appear.
  6. Select the time range to clear (drop-down menu).
      - Select the beginning of time to clear all cache.
  7. Make sure Cached images and files is checked and any other elements you want to clear.
  8. Click Clear browsing data.
  9. Close Settings tab.

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Firefox 30.0+ (Mac)

  1. Click the Three Lines icon in the top right of your browser.
  2. Click Tools in the top menu bar.
  3. Select History, then select Clear Recent History.
  4. Make sure Cache and Offline Website Data is checked and any other elements you want to clear.
  5. Click the Clear Now button.

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Opera 12+ (Mac)

  1. Open Opera.
  2. Click Tools in the top menu bar.
  3. Select Delete Private Data.
  4. Make sure Delete entire cache and Delete session cookies is checked and any other elements you want to clear.
  5. Click the Delete button.

 

Clearing Browser Cache on Android



Google Chrome 35.0+ (Android)

  1. Open Browser.
  2. click the Three Vertical Dots icon in the top right of your browser.
  3. Go to Settings.
  4. Click Clear browsing Data in the upper right.
  5. Make sure Clear the cache is checked and any other elements you want to clear.
  6. Click Clear.
  7. Click the Go Back icon twice to display the browser again.

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Mozilla Firefox 30.0+ (Android)

  1. Open Browser.
  2. click the Three Vertical Dots icon in the top right of your browser.
  3. Go to Settings.
  4. Click Clear private Data.
  5. Make sure Cache is checked and any other elements you want to clear.
  6. Click Clear data.
  7. Click the Go Back icon twice to display the browser again.

 

Clearing Browser Cache on iPhone, iPod touch, iPad



Mobile Safari

  1. From the home screen, tap Settings then Safari.
  2. At the bottom of the settings screen, tap Clear cookies and data, or Clear Cookies and Clear Cache.
  3. Confirm when prompted.

 

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Last Modified: July 15, 2014
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DOE, Office of Science One of ten national laboratories overseen and primarily funded by the Office of Science of the U.S. Department of Energy (DOE), Brookhaven National Laboratory conducts research in the physical, biomedical, and environmental sciences, as well as in energy technologies and national security. Brookhaven Lab also builds and operates major scientific facilities available to university, industry and government researchers. Brookhaven is operated and managed for DOE's Office of Science by Brookhaven Science Associates, a limited-liability company founded by the Research Foundation for the State University of New York on behalf of Stony Brook University, the largest academic user of Laboratory facilities, and Battelle, a nonprofit, applied science and technology organization.

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