I know what causes my crashing problems (bad browsing habits, suffice to say), but while I can reduce the chance of occurrence I can never know in advance just when the browser is going to crash. (On LW it seems to correlate with typing speed.) How post-crash text recovery is handled varies with the website, not with anything I can change, and having had this problem for a while, I have come to appreciate more the websites that offer better support for this.