Disable tap to click in xubuntu

"There is no touchpad manager coming by default in xubuntu. You have two choices (both of them in the standard repos, at least until Karmic Koala)

gsynaptics: is a legacy utility that will be dropped sometime in the near future. There are no dependencies for this package.
GPointingDeviceSettings: this is the new utility that is going to be supported in future versions. Despite the fact this second option is gnome-oriented (check the link!), it has only one dependency (also in the repos), and it allows you to set up other pointing devices as well.

Hope this help!"

"What finally worked for me on a Toshiba laptop (Fedora20) to enable the tap-to-click feature was to create a file like /etc/X11/xorg.conf.d/00-enable-taps.conf containing the lines

Section ""InputClass""
Identifier ""tap-by-default""
MatchIsTouchpad ""on""
Option ""TapButton1"" ""1""
EndSection

Conversely, to disable the tap-to-click feature I'd think that if, for some reason, no other options work--as is the case with GUI applications sometimes--you'd be able to create a file like /etc/X11/xorg.conf.d/00-disable-taps.conf changing the Option ""TabButton1"" ""1"" to Option ""TabButton1"" ""0""

Note
This workaround is outlined on fedorasolveddotorg"