Why should I be worried about this? I'm not trolling... I just don't understand what we are all supposed to be afraid of.
I wish there was a way of securing all of them with the same secondary authentication token.
It looks like pwdhash works around this by functioning as a browser plugin (making your master password in accessible from the DOM) but I'd still be slightly worried about browser exploits allowing malicious sites to get at your master password.
Financial institutions you type in: 'myfinancialpassword' Other sites you type: 'myrelativelysecurepassword'
pwdhash still leaks the length of the password since it aims to give users visual feedback of characters being typed.
Then you've also got the issue of automatic update of plugins being compromised. The question is really: is it more secure than the alternatives?