I made a test with...
ubuntu - 12.04 LTS 64 bit
Firefox - 19.0
fireFTP - 2.0.11
================================================
In fireFTP --> Edit --> Main
-- Main Details
Account Name: [ (cPanel name) ]
Category: [ "(optioal)" ]
Host: [ (you account's URL) ] <-- rodrigofontes.x10.mx
-- ID
Login: [ (cPanel name) ]
Password: [ (cPanel password) ]
NO check at "Anonymous"
In fireFTP --> Edit --> Connection
-- Connection Type
check at "Passive Mode"
NO check at "IPv6"
Security: [ None ]
Port: [ 21 ]
Private Key: [ blank ]
-- Initial Directories
Local: [ blank for now ] <-- you can set this after you get fireFTP to work
Remote: [ /public_html ]
NO check at "Keep directories in sync while navigating"
In fireFTP --> Edit --> Advanced
-- Web host (used with 'View on the Web' feature)
Host: [ blank ]
Prefix: [ blank ]
-- Timezone Offset
Hours: [ 0 ]
Minutes: [ 0 ]
-- Server Encoding
Character Set: [ UTF-8 ]
click on [ OK ]
click on [ Connect ] <-- near top left of screen
================================================
IF YOU RECEIVE --> [ Unable to make a connection. Please try again. ]
Just click on [ Connect ] again -- your server is [ Absolut ] which has had issues the last few days - most of the time you get in (FTP) on the first try
On one test it took four (4) tries to get in
================================================
The error message you posted [ Connected (version 2.0, client OpenSSH_5.3) ] looks like fireFTP
is trying to connect with SSH
x10hosting's free-hosting accounts DO NOT have SSH