I've noticed over 80 people have had the same question I do: How to turn off keyboard short cuts so you don't loose data on whatever webpage/webform you're filling out. I've found an answer, and I'd pass it on by reply, but those questions are now locked. So I'm posting this as a tip in the question area. (Anyone more familiar with Firefox support should feel free to move it, or copy it, into tips and tricks or whatever.) The common tip is to '''turn off the backspace key''', which by default sends you back a page. The solution for the backspace key is nothing new, change it from 0 (go back one page in history) to 1 (scroll up one page). You do that in the about:config webpage in Firefox. But that doesn't solve it for everyone. Some people find they are accidentally rotating the '''mousewheel with the shift key''' pressed. Another easy to make mistake if you like me are often zooming in and out. In about:config change mousewheel.withshiftkey.action from 2 (go back in history a page) to 1 (scroll up a page). And hopefully you won't loose any more webform data. Additional info and possible settings: http://kb.mozillazine.org/Browser.backspace_action http://kb.mozillazine.org/About:config_entries#Mousewheel I hope some of you find this helpful.