> that isn't accessed with a secret url, doesn't require multiple instances of Firefox in my dock, can be toggled between profiles easily I think Firefox can d

> that isn't accessed with a secret url, doesn't require multiple instances of Firefox in my dock, can be toggled between profiles easily I think Firefox can do at least these three. You can permanently enable the profile manager on application startup (it's not in an about: page). You can also make shortcuts on your desktop / taskbar / etc directly to a profile with "firefox -p ProfileName". All Firefox instances are grouped into the same icon on the taskbar for me (Linux / KDE). Granted, it could certainly be more user friendly, but it's proved rock solid for me for years now.