Multifox: log into websites with multiple accounts, simultaneously

If you have more than one account on a website, it can be a pain to log out and log in again to check another account. Wouldn't it be easier if you could log into multiple accounts at once, without logging out or having to manually switch between them? That's what the Multifox add-on for Firefox can do for you.

By right-clicking a link or by using the file menu, you can open a new window with a new "identity profile." That basically means the new window starts without any login cookies, so you can sign in with another account. Windows are numbered with a small toolbar icon, so you know which profile is assigned to each. Identity profiles even stick when Firefox restores your windows after a crash.

As long as you don't mind having multiple windows open, Multifox is a workable way to have two accounts open on the same site, side by side.