Clearing Browser Cache, Cookies and History

Each time you access a file through your web browser, the browser caches (stores) it. By doing this, the browser doesn't have to newly retrieve files (including any images) from the remote web site each time you click Back or Forward. You should periodically clear the cache to allow your browser to function more efficiently.

A cookie is a file created by a web browser, at the request of a web site, that is then stored on a computer. These files typically store user-specific information such as selections in a form, shopping cart contents, or authentication data. Browsers will normally clear cookies that reach a certain age, but clearing them manually may solve problems with web sites or your browser.

A browser's history is a log of sites that you visit. When you use a browser's Back button, you are moving back one entry in the history log. Browsers will normally clear the history at regular intervals, but you may want to clear it manually for privacy.

Android

1. Select Menu, then More.
2. Select Settings.
3. Under "Privacy settings", select Clear cache, Clear history, or Clear all cookie data as appropriate, and then OK to accept.

Chrome 

1. Click the 3 dots (Mac) or exclamation point (PC) in the upper right corner of the browser.
2. Hover over the More Tools option then click Clear Browsing Data...
3. Choose The Beginning Of Time or lesser time frame in the "Clear the Following Items From" field.
4. Select the items you want to clear (e.g., Browsing history, Download history, Cached images and files, Cookies and other site data).
5. Click Clear Browsing Data. 

Firefox

1. Click the hamburger menu in the upper right corner of the browser.
2. Click Preferences (Mac) or Options (PC).
3. Click Privacy in the left menu bar.
4. Click Clear Your Recent History.
5. From the Time range to clear: drop-down menu, select the desired range; to clear your entire cache, select Everything.
6. Click the down arrow next to "Details" to choose which elements of the history to clear.
7. Select Browsing & Download History, Form & Search History, Cookies, Cache and Active Logins
8. Click Clear Now.

Edge

1. Click the 3 dots in the upper right corner of the browser.
2. Choose Settings.
3. Under Clear Browsing Data click Choose What To Clear.
4. Select the items you wish to clear (e.g., Browsing History, Cookies and Saves Website Date, Cached Data and Files, Downloaded History and Form Data).
5. Click Clear.

Safari

1. Click the Safari menu, then Clear History...
2. In the Clear field choose All History
3. Click Clear History.

Mobile Safari for iOS (iPhone, iPod touch, iPad)

To clear cache and cookies:

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

To clear history:

1. From the home screen, tap Safari.
2. At the bottom of the screen, tap the Bookmarks icon.
3. In the lower left, tap Clear.
4. Tap Clear History.