Very useful, but UI could be improved Rated 4 out of 5 stars
This is immensely useful for those of us with multiple profiles, and we can switch at the click of a button or pull of the menu.
There are a few too many clicks to use the extension, though; if I've added it as a toolbar item, I'd like a single click to open the list of profiles, with the other actions as items below the separator. It takes far too long to get into the menus otherwise. With an option to display the profile name next to the toolbar button, this could act very much like a select box.
Also, the status bar version is nice, but isn't active. If that's the only visible indication I've chosen to use of my current profile, it would be nice to click it to get the extension menu as above.
Finally, some way of assigning icons to each profile (or even just a colour to start with) that would change the toolbar and status bar icon would make it easier to see which profile is active if they have similar email addresses. Perhaps a gravatar if the user has signed into Firefox sync with an email address?
With these three usability enhancements, I think this would be an absolutely top-notch extension that's essential for power users.
Thank you for the hints, I will keep them in mind for future updates