To clear cache and cookies in Firefox, select the hamburger icon in the top-right corner of the browser to open the menu.
Select “Options” from the menu.
The Firefox preferences settings will appear in a new tab. Here, select “Privacy & Security” from the left-hand pane.
Scroll down to the “Cookies And Site Data” section. Here, select “Clear Data.” To clear cookies and site data when you close Firefox, check the box next to that option.
The “Clear Data” window will appear. Check the boxes next to “Cookies And Site Data” and “Cached Web Content” and then select “Clear.”
A warning message will appear, letting you know that if you select “Clear Now” that you may be signed out of websites and offline web content may be removed. If you’re sure, select “Clear Now.”
After a few moments, your cache and cookies will be deleted.
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