How to install Filezilla3

Very simple, download Filezilla from http://filezilla-project.org/download.php?type=client

Then run these commands in a terminal where you downloaded the file to:

sudo tar jxvf FileZilla_3.2.5_i586-linux-gnu.tar.bz2 -C /opt/
sudo chown -R root:root /opt/FileZilla3/
sudo chmod -R 755 /opt/FileZilla3/

You may need to edit the first line to correct for version/name changes to the file you have downloaded, FileZilla works a treat ;)

Create a menu item next:

sudo gedit /usr/share/applications/filezilla.desktop

And add the following lines:

[Desktop Entry]
Encoding=UTF-8
Name=FileZilla
Comment=FTP Client
Exec=/opt/FileZilla3/bin/filezilla
Icon=/opt/FileZilla3/share/pixmaps/filezilla.png
Terminal=false
Type=Application
Categories=Application;Network;
StartupNotify=true

FileZilla can then be started from Applications → Internet → FileZilla.