Editor's Note: Facebook has been blocked in Syria consistently for the past two years; therefore, the statement that a ban will be “reintroduced” is incorrect. The linked article from ‘Al Quds Al Arabi’,” which has since been removed, did not actually claim that Syria planned to reintroduce a ban. The information regarding Syrian users’ protests, however, is correct (most Syrian Facebook users access the network using a proxy).
According to Al Quds Al Arabi  newspaper, Syria is planning to reintroduce the ban on Facebook  after a first ban of the social networking website in November 2007 . This came after Facebook allowed residents of the Golan Heights  to mark their country of abode as Israel. Until recently Golan Facebook users were compelled to enter Syria as their country of residence on their page. This change came after a campaign organized by HonestReporting , an organization dedicated to defending Israel, who launched the Facebook group “Facebook, Golan Residents Live in Israel, not Syria “.
Image Source: honestreporting.com 
On the other hand, Syrian activists are also planning to launch a campaign to boycott  the website after it's recognition of Israel's claim over Golan heights.
Image Source: jawlan.org