I saw some guy had a file (I guess a batch file). On clicking of the batch file he was able to log in to multiple sites. (Perhaps it was done using VB.)
I looked for
From the term "automatic login" I suppose security (password protection) is not of key importance here.
The guidelines for solution could be to use a JavaScript bookmark (idea borrowed form a nice game published on M&M's DK site).
The idea is to create a javascript file and store it locally. It should do the login data entering depending on current site address. Just an example using jQuery:
// dont forget to include jQuery code
// preferably with .noConflict() in order not to break the site scripts
if (window.location.indexOf("mail.google.com") > -1) {
// Lets login to Gmail
jQuery("#Email").val("youremail@gmail.com");
jQuery("#Passwd").val("superSecretPassowrd");
jQuery("#gaia_loginform").submit();
}
Now save this as say login.js
Then create a bookmark (in any browser) with this (as an) url:
javascript:document.write("");
Now when you go to Gmail and click this bookmark you will get automatically logged in by your script.
Multiply the code blocks in your script, to add more sites in the similar manner. You could even combine it with window.open(...) functionality to open more sites, but that may get the script inclusion more complicated.
Note: This only illustrates an idea and needs lots of further work, it's not a complete solution.