I sometimes do that as well, for my longest posts, but in all the times I have lost my posts, I either pressed the "Back" button, or my posts was recovered (if it was a computer shutdown/browser crash). I only use MS Word because it is more comfortable. I have Firefox, BTW, which always recovers everything when the browser is unexpectedly shut down.
Yes, Firefox is quite splendid. It also has a spellchecker, good security, and most of all, speed. Just a day ago I used IE, and the difference in speed was stunning. IE lagged so much, it gave me the impression that I had 1 Mb/s connection, and not the 6 that I have.
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