There is now one less. I'd mostly only been posting anonymously as my account here is quite aged, but having managed to recover the password recently I'll see how long the cookie remain cached or I remember the password 
I hadn't noticed any advertising, but it's probably being filtered out.
You should have a look at
last past Allows you to store your passwords online, normally I would not trust these type of services, but lastpast is really good and as secure as you are going to get as it is all encrypted.
You can use it with Crhome, IE, and Firefox and i think with opera and safari as well, even works in Linux.
Relying on cookies is not a good idea anyway and I normally delete all cookies after a session anyway.
Adrian
Desktop machine now powered by windows 7 pro 64bit , laptop by ubuntu
ALL PAY Wireless broadband