Firefox
- Click the menu button and choose Preferences.
- Select the Advanced panel.
- Click on the Network tab.
- In the Cached Web Content section, click Clear Now.
Safari
- In the Safari menu bar, select Preferences.
- In the Preferences window, click the Advanced tab.
- At the bottom of the window, select the Show Develop Menu in menu bar checkbox.
- Return to the Safari menu bar and click the Develop option.
- Select the Empty Caches link.
Chrome
- In the top-right corner of Chrome, click the Chrome menu .
- Select Settings
- Click on Show advanced settings...
- Click on Clear browsing data...
- Use the menu at the top to select the amount of data that you want to delete. Select beginning of time to delete everything.
- Click Clear browsing data.