Recovering saved password in Filezilla
Export your Site Manager information and you'll find them in plain text:
File > Export > Export Site Manager entries
It exports everything in XML like this:
<Server>
<Host>ftp.example.com</Host>
<Port>21</Port>
<Protocol>0</Protocol>
<Type>0</Type>
<User>root</User>
<Pass>mypass</Pass>
[etc]
</Server>
All passwords are stored in plain text in this file:
/home/username/.filezilla/recentservers.xml
And for newer versions of filezilla and ubuntu, /home/username/.config/filezilla/recentservers.xml
If the passwords are base64 encoded, https://www.base64decode.org/ can be used to get the original password.
Ubuntu Linux FileZilla SiteManager file:
/home/username/.filezilla/sitemanager.xml