The League Two club confirmed the deal on their official Twitter page and it remains subject to clearance.
Fontaine impressed during a trial period with the Cod Army and is set to join up with his new team-mates on Monday.
The 24-year-old is boss Graham Alexander's sixth signing of the January transfer window following the arrivals of David Lucas, Gareth Evans, Mozesh Gyorio, Jamille Matt and Paul McKenna.







