Social Networking Sites (SNS) such as Facebook (FB) are currently highly used by students because technology has the potential to become a valuable resource to support their educational communications and collaborations. This paper attempts to present a comprehensive picture of what has been investigated in terms of the use of Facebook as an online English language-learning environment and inquires whether this learning model can enhance students' learning of English. It also aims to explore the students' perceptions towards learning English in the Facebook context following four treatments, language improvement, confidence, motivation and attitude. The sample who participated in the study was N = 65, in the department of English language and translation enrolled in a B.A program. Findings revealed that the EFL students believe that FB as an online learning environment facilitates, supports, and encourages their English language learning. In addition, the findings indicate that students' motivation and confidence towards English language learning improved via FB. The study also revealed that students had a positive attitude towards this learning model. In light of the findings of the study, it is recommended that TEFL teachers should plan learning classes that use SNS such as Facebook as a learning platform.