This is a nice way to refresh your profile without losing all your history and other stuff: https://support.mozilla.org/t5/Procedures-to-diagnose-and-fix/Refres

This is a nice way to refresh your profile without losing all your history and other stuff: https://support.mozilla.org/t5/Procedures-to-diagnose-and-fix/Refresh-Firefox-reset-add-ons-and-settings/ta-p/23405 https://support.mozilla.org/t5/Procedures-to-diagnose-and-fi...