H aimen.khan57,

In Firefox for desktop if you have synced the mobile device:

Go to Options  > Security > Saved Passwords > "Show Password"

This will reveal the text string of the stored password.

In Firefox for Mobile:

Settings > Privacy > you can choose to remember passwords

At this time, stored passwords cannot be seen in Firefox for Android.

There are two elements that are 'remember' points for yahoo web mail.

Depending on what you have clicked in the past, Yahoo.com saves a little file on your device called a 'cookie'. When you 'logged' into the website for the first (or more recent) time, there was a little check box next to the login field and password fields. It probably was checked. this enabled yahoo to save on your computer a 'cookie' so that you are now known by yahoo and others , when you connect ,and when you last looked at their website (and were presented with their advertising, as payment for using their free service), now when you signed out from Yahoo, it remembered the cookie, and not your password. The next time you forgot your password, and clicked 'I forgot my password' at yahoos site, it looked at your 'cookie', then sent you to the correct site for your country or language.. Thats what fouled up before. (Remember , Firefox has not saved your password yet), however, there was a point where you can click update my password), and then FF will save your password to the website you told it to. Auto-Complete is what happens when you fill in your user name, and that also gets stored with your 'cookie'.

J Hope this helps explain the 3 places where your password is kept.

1) Locally on your device in a secure file (IF Master Password is used) based on the domain name you connect to.

2)In a cache file in memory, while the session is active, and refreshed occaisionally, and linked with a 'cookie' from the website.

3)At the Yahoo Web Server and cached internally, to match with the cookie that is stored with your machineID.

-Terriffic