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How to delete search history
I can only delete history one by one. How do i do it all at. Once
Все ответы (2)
By using the clear private data dialog. https://support.mozilla.org/en-US/kb/how-do-i-clear-private-data-firefox-android
Kbrosnan's answer is correct and you haven't replied so I am locking this question.
If you are still having issues, please ask a new question with the exact set of steps that you followed.