Put a profile on the desktop and open it in one click
A shortcut opens Mosaic for that one profile, without the main window. When the browser closes, Mosaic quits a few seconds later.
Mosaic is a desktop app
Email yourself the link and open it on your computer.

Desktop shortcuts, step by step
Make the shortcut
Choose a profile and create a shortcut.
Open it
The shortcut starts Mosaic quietly for that profile, with the same proxy check and launch as the window would do.
Close it
Closing the browser ends the session and Mosaic quits about three seconds later.
The smaller things it does
Removed only by what wrote it
Mosaic deletes only shortcuts it made, so a file of yours with the same name is left alone.
Works with
A profile list built for the keyboard and for three hundred rows
Pins, a command palette, columns you choose, fast search.
Checked before every launchA profile does not open until its proxy has answered
No profile opens behind a proxy that has not answered.
Bulk actionsMake 500 profiles in one go, then work on all of them at once
500 profiles per batch; start, edit and type into many.
Desktop shortcuts is in every plan
Free holds 3 profiles and 10 profile creations, with the same engine as Pro. Pro is $49 a month for any number.
Mosaic is a desktop app
Email yourself the link and open it on your computer.