Firefox for Windows

1. Click the Firefox button or Tools menu (Windows XP).
2. Select Clear Recent History.
3. Select the Cache and Cookies checkboxes.
4. Click the 'Clear Private Data Now' button.
5. Click the Clear Now button.
6. Exit and re-launch the browser.

Firefox for Mac OS X

1. Click the Firefox menu.
2. Select Preferences.
3. Select Advanced.
4. Click the Network tab.
5. In the Offline Storage section, click Clear Now.
6. Click the OK button.
7. Exit and re-launch the browser.

Microsoft Edge for Windows 10

1. open Microsoft Edge
2. click on the more icon
3. select Settings
4. click on the "Choose what to clear button"
5. select all of the applicable checkboxes, such as "Browser History", "Cookies and saved website data" and "Cached data and files"
6. click on the Clear button.

Internet Explorer 9 for Windows 7

1. Open Internet Explorer.
2. Click the Tools button, point to Safety, then click Delete browsing history.
3. Select the Cookies check box, then click Delete.
4. Exit and re-launch the browser.

Internet Explorer 8

1. Open Internet Explorer.
2. Click on Tools in the top right, then choose Internet Options.
3. On the General tab, under Browsing History, click the Delete… button
4. Uncheck Preserve Favorites website data and then check both Temporary Internet Files and Cookies.
5. Click Delete.
6. Exit and re-launch the browser.

Chrome

1. Open Chrome.
2. Click on the Wrench icon in the top right, and choose Settings.
3. Click on Under the Hood, then the Clear browsing data… button.
4. Check the boxes for Empty the Cache and Delete cookies, and click the Clear browsing data button.
5. Exit and re-launch the browser.

Safari on Mac OS X

1. Open Safari.
2. Click on Safari in the top menu.
3. Select Empty Cache…
4. Click Empty.
5. Exit and re-launch the browser.

How do I enable my browser's Javascript?

1. Click the Firefox button or Tools menu (Windows XP).
2. Select Options.
3. Click the Contents tab.
4. Select the 'Enable JavaScript' checkbox.
5. Click the OK button.

1. Go to the Firefox drop-down menu.
2. Select Preferences.
3. Click Content.
4. Select the option 'Enable Javascript'

1. Go to the Chrome settings menu.
2. Under Privacy, click Content Settings.
3. Select the JavaScript tab and choose the option Allow all sites to run JavaScript.

1. Click the Tools menu.
2. Select Internet Options.
3. Click the Security tab.
4. Click the Custom Level button.
5. Scroll down until you see the 'Scripting' section. Select the 'Enable' radio button for 'Active Scripting.'
6. Click the OK button.
7. Click the Yes button in the confirmation window.

1. Click the Safari menu.
2. Select Preferences.
3. Click the Security tab.
4. Select the 'Enable JavaScript' checkbox.