Lazarus: Form Recovery. HERE (https://chrome.google.com/webstore/search/lazarus%20form%20recovery%20extension?hl=en-US&_ac=1) is the link for the Chrome extension and HERE (https://addons.mozilla.org/en-US/firefox/addon/lazarus-form-recovery/) it is for Firefox. It's saved my ass a few times and I highly recommend it.