FileZilla stores saved server credentials (ID and password) in XML files inside the user's configuration directory. The passwords are encoded in Base64 format.
In Ubuntu 24, the credentials are stored in the file "recentservers.xml". To view the file, run the following command in the terminal:
less ~/.config/filezilla/recentservers.xml
Since ".config" is a hidden folder inside your home directory, use the following command to navigate:
cd ~/.config/filezilla/
ls -la