How to fix "Fingerprint composition failed" error
If you encounter this error while creating browser profiles, don’t worry – it’s usually easy to resolve.

Here are the three most common causes and how to fix them ⬇️
You've clicked "Get new fingerprint" too many times
If you’ve hit the button multiple times in a short period, the app may need a moment to process.
Fix: wait for a minute and restart the app.

App components are still downloading
You might see a green bar at the top of the app window, indicating the download is still in progress.
Fix: wait until the components are fully downloaded and the green bar disappears.

Ongoing server-side issues
Sometimes, the problem is on our end.
Fix: check our Status page or join our Telegram channel for updates.
Nothing helps?
If none of these steps work, send us your log files, and we’ll investigate for you.
Logs MLA
If you can log in
- Restart Multilogin
- Recreate the issue and try to reproduce the error message received
- Go to "My account"
- Click "Open logs directory"
- Archive all log files in the folder
- Send the ZIP or RAR file to [email protected]

If you can't log in
Windows
- Close Multilogin
- Go to the
C:\Users\%username%\.multiloginapp.com\log
directory - Archive all log files in the folder
- Send the ZIP or RAR file to [email protected]
macOS
- Close Multilogin
- Open your user directory in Finder
- Press
Cmd + Shift + .
(period) to show hidden files - Go to the folder .multiloginapp.com → log
- Archive all log files in the folder
- Send the ZIP or RAR file to [email protected]
Linux
- Close Multilogin
- Go to the
/home/%username%/.multiloginapp.com/log
directory - Archive all log files in the folder
- Send the ZIP or RAR file to [email protected]