The bookmarklet acts as a simple toggle to easily show and hide the password on the fly, without requiring you to tweak any complicated settings or copying and pasting the password from a text document. To see whether it's working or not, go to a website containing a login page and enter you username and password credentials.
Now to reveal the password, click ISeePass and bingo! The password will become instantly visible. You can click this bookmarklet again to rehide the password.
All in all, a really handy solution to expose password boxes whenever you need to type long passwords without typing errors. And if you found it useful, don't forget to share this post with others.