Review for ProfileSwitcher by NuclearPeon
Rated 4 out of 5 stars
This addon is minimal yet very functional. One click of your mouse in the File menu allows you to switch a profile.
One nitpick is that you need to go into Open Profile Manager and select a mode in the submenu to create a new profile. It seems they could have a create profile and ask for the mode later, or just link to the profile manager and popup a mode dialog or similar. Menu items seem a little wordy, but it's a minor observation when the actual functionality is solid and once you have profiles up, extremely easy to manage.
To create your own collections, you must have a Mozilla Add-ons account.