I was wondering why ffshrine logs me out after about 5-10 minutes of inactivity (e.g. not changing which thread I'm looking at). It's really detrimental when I'm writing a long post and I press the submit button and it says I need to log in to post, thereby losing everything I had just written. Yes, I know "You could just copy it, log back in, and paste it", but it's also kind of annoying to have to log back in every time I leave my computer for a little while. Is there a place in the settings where I can change this? Thanks.

You can click "Remember Me" when you log in. That way, it won't log you out automatically.