This is one of the best scripts for those who maintain multiple accounts. It’s a boon for Guys like me who need to take care of their personal and official accounts simultaneously. This script saves a user cookie so that you just click on the email address and log in to in without any restriction. You can add as many profiles as you can, you just need to log into each one time after you install this script.
» Instructions
This hack is not compatible with Internet Explorer since it uses Greasemonkey, a Firefox Add-on. If you want to enjoy this and countless other hacks then Switch to Firefox.
- Install Greasemonkey extension for Firefox – Click Here to Install (or Read More)
- Install Multi User Switcher (problem?)
- Whenever you login to orkut with a new user, just choose add this user and after that just click on the respective email addresses to switch the users.
» Credits
This userscript has been created by Moises Lima originally in Portuguese and Mr Nobody has done it’s English Translation
» Notes and Updates
This userscript does not work in new orkut theme.
Gaurav Dua – Orkut Guru – 539 Points 
22, Webmaster and Businessman. Based in Jammu, J&K – India
Gaurav has written 507 Articles, posted 322 Comments.
hi.. i have installed this multiple user switcher.. but dont know how to use..i m not getting “user” option. I tried to change the code from orkut.com to orkut.co.in I m using firefox 3 and have grease monkey too..