How to configure Firefox to automatically reuse the login credentials like IE

You need to enable NTLM Configuration within FireFox. It is very simple to do and should solve your problem:

Open Firefox and type “about:config” in the address bar. (without the quotes of course)
In the ‘Filter’ field type the following “network.automatic-ntlm-auth.trusted-uris”
Double click the name of the preference that we just searched for

Enter the URLs of the sites you wish to pass NTLM auth info to in the form of:

http://intranet.company.com,http://email.company.lan

Notice that you can use a comma separated list in this field.

Generate SSH key to login automatically with putty

Use puttygen.exe to make a private key.
Make .ssh/authorized_keys file and add text ” ssh-rsa ” with spaces,
following the public key from the private key file on one line.
Assign rw permissions only for the owner. $ chmod 600 ~/.ssh/authorized_keys.
Configure putty to use the private key when connecting (Connection -> SSH -> Auth).

More detailed instructions: http://www.tonido.com/blog/index.php/2009/02/20/ssh-without-password-using-putty/