The 31-year-old moved to Goodison Park on a free transfer from Huddersfield in the summer but has failed to make any appearances for the Blues so far.
Speaking to the club’s official website, Lossl said he had no doubts about making the move back across the Pennines when the opportunity arose.
“I’m really happy, it feels like I’m coming back to part of my life here. I really feel at home,” the goalkeeper said.
“I followed the club closely and when they called, I wasn’t in doubt. I need to play a bit more again. To come here and help build something again is really big for me.
“Huddersfield has a special place in my heart. The things we experienced those two seasons, the ups and downs, we did that together all the way.”