Deleting Mozilla Firefox history is a must, especially if you are browsing on a shared computer or public computer like for example internet café, or anywhere else which is not safe and secure. Other users can steal your important login credentials like bank account access, social media passwords, and even spy on what websites that you always visit.
Firefox store all information on its history what you have downloaded, visited, recently closed tabs and etc. To simply clear the history of your browser, just click ctrl + shift + delete and select “everything” and click clear now and voila! You have cleared your Firefox history.