Unblockers Facebook I Have Problem Using Facebook Unblockers. I Cant Send Any Data !?

I have problem using facebook unblockers. I cant send any data !? - unblockers facebook

Unfortunately, Facebook (and a few other sites has been blocked) in my country (Iran). Some people use unblokers to join Facebook. If I use some of them, my homepage is displayed correctly. In others, I can not get into my site, but can not do anything! I think I should change some settings on my browser or pistons. but can not find, what to change!