How can i auto open and login 2 multipal email accounts in sepperate windows with the least key strokes?

i have 5 email accounts,(personal, work, for web authoring, for web site sign in/registration, and this one for yahoo answers) how can i open all 5 in separate Firefox tabs and login with just a few keystrokes; like automating a repeated series of actions in WINDOWS WORD with a macro. have tried the Firefox add-on imacro but it won't work.