When it comes to security Online, you can never be too safe. KeyScrambler Personal, an extension for Firefox, encrypts your keystrokes at the kernel driver level to protect your login information from keyloggers.
When you type on your keyboard, the keys travel along a path within the operating system before it arrives at your browser. Keyloggers plant themselves along this path and observe and record your keystrokes. The collected information is then sent to the criminals who will use it to steal from you.