Update on the mod that prevents losing a message if you accidentally browse away. I don't think it's worth using. Not unless the author will agree to update it.
I wanted to leave it installed long enough for several people to test. But it was so obnoxious, I couldn't stand it, and had to uninstall it! It does save the message. The problem is, it saves it permanently, until you type a new message. Permanently! Well, I didn't try restarting the browser, but I wouldn't be surprised if it would still be there.
So what happened, is that after I posted the message, both the Quick Reply and the full editor both still have the message in their respective fields. The problem is that when I open a new topic, that same message from the other topic is still there!. No matter how many topics I open, the last message I typed was still there!
In my opinion, it doesn't need to be saved after the message is posted, because you could simply click Modify to copy it, if you needed to. But since you posted it, you don't really need to save it anymore.
I don't want to have to delete my last message from the editor before I type a new one. And plus, when I went to a new topic, and clicked Reply, I would see the warning that a new message has been posted already! If I kept the mod installed, that warning would always be there, because it still has the last message I typed, any new topic is going to look like all the messages in it were posted while I was typing.
I don't know if that mod ever worked well, but certainly it doesn't work very well now. Not unless the author will update it. I asked. Cross fingers.
(According to the mod's author, browsers are supposed to save messages. However, I think he must mean when you allow saving of the Form History. I don't use that for security reasons. Otherwise, I've never heard of browsers saving the forum messages.) (Hhmm, maybe there's a different mod - I'll search further....)