Clearing your Browser Cache for Mozilla Firefox for iPads & iPhones
On your iPad or iPhone, open the Mozilla Firefox application:
Select the three horizontal lines at the bottom right-hand corner:
Select Settings at the bottom of the drop-down that appears:
In the Settings popup under the Privacy section, select Data Management:
Then select Web Site Data at the top of Data Management:
In Web Site Data, select the Clear All Web Site Data button:
When prompted for confirmation, select OK:
Once confirmed, select the Back button to navigate back to Data Management:
Under the Clear Private Data section, ensure Cache, Cookies and Offline Web Site Data options are checked. Then select the Clear Private Data button:
When prompted for confirmation, select OK: