creating space, deleting facebook data??

[jimbob35]

In my applications list:

Facebook for HTC sense 8.6MB
Facebook 7.2MB
com.htc.socialnetwork.prov. 4.75MB

All are obviously facebook related, this is the only social network site i use.
Can I safely clear the cache/data of any of these? I dont want to lose contact data or anything else really..

Its far too much space in my opinion..
Thanks

 

[EddyOS]

Clear FB for HTC Sense will lose all the contact data linked to your phonebook, FB is the app, other one might be to do with FriendStream