It’s good practice to clear your cache every so often. Your browser cache pre-stores files like images and web pages that sit on your hard drive. These usually provide faster access if you were to visit the same pages again or pages that have the same components. Clearing cache usually refreshes any apps which may have undergone changes. Also, having this data on the hard drive can be a privacy issue for some people.
Do one of the following.
From the ‘three-dot’ ‘Menu’ button in the upper-right corner of the Chrome window,
Choose ‘More Tools’; ‘Clear browsing data’.
(Or, with your browser open, in Windows or Linux press ‘CTRL’ + ‘Shift’ + ‘Delete’ keys)
(Or, on MacOS, ‘Command’ + ‘Shift’ + ‘Delete’ keys, then select ‘Menu’; ‘Settings’; ’Advanced’; ‘Clear browsing data’)
Select the ‘Advanced’ tab and set the ‘Time range’ (recommended) to ‘All time’
Select, at least, the items as suggested below.
Touch the CLEAR DATA button
Click the Library button - see above icon
Click ‘History’ and then click ‘Clear Recent History’
Select how much history you want to clear:
Click the drop-down menu next to 'Time range to clear' to choose how much of your history Firefox will clear (‘Everything’ is recommended)
Next, click the arrow next to Details to select exactly what information will get cleared.
Click the ‘Clear Now’ button. The window will close.