Prevent user to find password through Firebug/Chrome Dev Tools

Question

For the passport input field:

Answer 1

You can use a simple Javascript code to store the password value in a variable onblur and then restore it onfoucs or/and onsubmit.

Look at the following demo code and its online demo here:

It is clear that solution is JavaScript dependent solution, so in the case of disabling javascript, you may use noscript asking for JavaScript enabled browser.