I can't express just how incredibly useful it would be, for me, to have a KeePassX browser plugin, for Firefox, on the Mac. (I'm sure PC users feel the same!) It wouldn't hurt to have a Chrome plugin, as well...
I'm surprised that this isn't more of an issue for most KeePassX users...my primary source of passwords, that need to be stored, come from my infinite number of internet accounts. Now that I am trying to implement better security with my passwords, KeePassX becomes critical, because there is no other (reliable & secure) way I could ever keep track of all those strong passwords!!!!
If I was a developer, I would be working on this...alas, I am not. Someone PLEASE build this!