Hi sharad & Welcome,
There probably is but it's way passed my bedtime and I can't think straight!! Another long session.....If I remember tomorrow I'll post back (just want to get this in before I go).
A solution to force the Remember Password applet to open (like for Yahoo & M$ log-ins) would be to use the
Remember Password Bookmarklet by Jesse Ruderman. You can drag it into your bookmarks bar from that site.
There's quite a lot of good ones there also.
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Re: Hiding the Show Password button
Another Option, possibly for the brave or more advanced user is to open about
:config in your addy bar and change the value in the pref:
pref.privacy.disable_button_view_passwords
from false to true.