Ubuntu 19.10 fresh install.
command "strace filezilla" output stops on this lines:
poll([{fd=12, events=POLLIN}], 1, 25000) = 1 ([{fd=12, revents=POLLIN}])
read(12, "\1\0\0\0\0\0\0\0", 16) = 8
poll([{fd=12, events=POLLIN}], 1, 25000
And program starts only after 25 seconds.
When I updated version 19.04 to 19.10, there was no such problem. But after a clean install of 19.10, filezilla starts with a delay.
Best Answer
The solution here : "sudo apt install appmenu-gtk2-module" and reboot.