mozilla : multiple windows with different profiles/ preferences/ cookie jars

"C:\Program Files\Mozilla Firefox\firefox.exe"
Useful command for windows to make a copy of the best browser - firefox and open 2 profiles. with 2 profiles u can open 2 seperate google accounts / have different add-ons , settings etc:-

copy "C:\Program Files\Mozilla Firefox\firefox.exe" "C:\Program Files\Mozilla Firefox\firefox2.exe"

launch first time
"C:\Program Files\Mozilla Firefox\firefox2.exe" --no-remote -p

make new profile p2 then can make shortcut for it -
"C:\Program Files\Mozilla Firefox\firefox2.exe" --no-remote -p p2

edit original profile to invoke default profle:
"C:\Program Files\Mozilla Firefox\firefox.exe" --no-remote -p default

by making a new exe we force windows to keep that window and its child windows in a separate window group in the windows task bar