Chinese manufaturer ZTE is tipped to unveil its rumoured Firefox OS-powered smartphone at the Mobile World Congress which will kick-start on Monday. 

Technology website Engadget got a sneak peek into the specs sheet of the ZTE phone. According to the leaked specs, ZTE's first Firefox OS-Based smartphone is called 'ZTE Open' and will boast a 3.5-inch HVGA TFT display and Cortex-A5-based Qualcomm MSM7225A processor which is usually clocked at 600MHz or 800MHz.

Other features the smartphone is expected to arrive are a 3.2-megapixel front-facing camera, 256MB RAM, 512MB internal storage and connectivity features like WIFI 802.11a/b/g/n, Bluetooth 2.1 (with EDR3) and GPS. Additionally, it will also feature FM radio, accelerometer, ambient light sensor and 1,200mAh battery.

The company has sent out the invites for the electronics convention with two twitter hashtags "#ZTEGrandMemo and #ZTEMozilla" pointing to the imminent launch of the ZTE Open smartphone.

ZTE is also expected to unveil a 5.7-inch Grand Memo smartphone at MWC. Last month, Mozilla Foundation announced its entry into the smartpone market with two new devices, Keon and Peak, which run on Firefox OS mobile operating system. ZTE Open is the next smartphone which will run on the Firefox OS platform.