For Google Chrome:
Click the three dots in the upper right side of the chrome window
Hover over "More tools" and wait for the menu to expand
Click "Clear browsing data"
Set the time range to include everything
Click "Clear data"
For Mozilla Firefox:
- Click the three bars in the top right
- Click on "Library"
- Click "History"
- Click "Clear Recent History"
- Click the drop-down box and set it to "Everything", then click Clear Now