That ancient setting was meant to help prevent assistive technologies like screen readers from losing their place. It is useless as a security feature because it only addresses a limited number of scenarios. Also, setting it to true prevents normal redirects in various scenarios causing irritating blank pages to appear randomly. I suggest setting it back to its default value of false. (I don't know who recommended you use it, but they might not fully understand how it works, or should I say, doesn't work.) Regarding losing form data on websites, you could consider an add-on that saves data as you type. These are the ones I know have been around for years, but there might be others: * https://addons.mozilla.org/firefox/addon/form-history-control/ * https://addons.mozilla.org/firefox/addon/textarea-cache/