When the browser is open, use the following...
Safari -
1. Click "Safari" in top gray bar
2. Choose "Reset Safari"
3. Check items to reset, hit "Reset"
Chrome -
1. Click "Chrome" in top gray bar
2. Choose "Clear Browsing Data"
3. Check items and select preferences, "Clear Browsing Data"
Firefox -
1. Click "Firefox" in top gray bar
2. Choose "Preferences"
3. Choose "clear all current history" in small blue print
4. Check items and select preferences, "Clear Now"