I think it was also possible with the .pet package of the gFTP v2.9.1b program ... it is also the latest version of the program and probably the update is very much needed because the old gFTP could not be connected with the FTPS protocol, i.e. use TLS encryption (which nowadays is rather not recommended). I checked the program on the F96-CE system, the installation and operation is correct. However, everyone has to check for themselves and that's why it's a test program.
gFTP-v2.9.1b
regards
ps. Important information about TLS / gFTP encryption from the program's github.
When using the FTPS protocol, gFTP cannot connect if the remote server uses a self signed certificate.
Go to gFTP menu -> Preferences -> SSL Engine and untick Verify SSL Peer
Or you should add the public key of your self signed CA to your OpenSSL certs directory.
For testing, Thunderbird v102.12.0 in the .pet version
Thunderbird v102.12.0
FileZilla v3.64.0
download
regards