mozilla error

[Daniele Scarselli]

Hi all
When I start mozilla or mozilla-firefox I receive the following message and 

daniele at casa:~$mozilla
LoadPlugin: failed to initialize shared library libXt.so [libXt.so: cannot 
open shared object file: No such file or directory]
LoadPlugin: failed to initialize shared library libXext.so [libXext.so: cannot 
open shared object file: No such file or directory]
Segmentation fault

could you help me please?
Thanks

Daniele
-- 
Daniele Scarselli
Agronomo
email: scarselli at faunalia.it
jabber: daniele at faunalia.it

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