Computer (Windows)

Option 1: Firefox Settings Menu

1. Click the menu button  and select Settings.

2. Select the Privacy & Security panel.
3. In the Cookies and Site Data section, click Clear Data….

   

4. With Cookies and Site Data and Cached Web Content check marked, click the Clear button.
5. Close the about:preferences page. Any changes you've made will automatically be saved.

Option 2: Firefox History Menu

1. Click on the menu button  to open the menu panel.
2. Click History and select Clear Recent History….
3. Next to Time range to clear, choose Everything from the drop-down menu, select Cache in the items list, make sure other items you want to keep are not selected and then click the OK button.

Computer (Mac)

1. In the main menu of the browser select "History" and below that the submenu-item "Clear Recent History..."
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2. A popup opens. In the drop-down menu, you can define the time range you want to delete the cache. You have the following options: last hour, last two hours, last four hours, today or Everything.
3. To delete all cache data, select "Everything" from the drop-down menu.
4. Afterwards, click on the arrow next to "Details" to show the different possibilities for which data should be deleted. If you want to delete only the cache, then check only the checkbox next to "Cache".
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5. With a click on the button "Clear now" you delete the cache.
6. Reload the site afterwards.