Clear the cache
- Click the menu button
and select Settings.
- Select the Privacy & Security panel.
- In the Cookies and Site Data section, click Clear Data….
- Remove the check mark in front of Cookies and Site Data.
- For more information about managing site data, see Manage local site storage settings.
- With Cached Web Content check marked, click the Clear button.
- Close the about:preferences page. Any changes you’ve made will automatically be saved.