Johnson took to social media on Thursday to post a memo to Macron regarding five measures their countries could take to avoid additional migrant fatalities in the English Channel.
Within the three-page memo, the UK prime minister proposed a bilateral readmission agreement that would allow migrants who cross the English Channel to be returned to France.
Johnson expressed intent is reportedly to get a similar deal with European Union nations. Britain lost access to the bloc's system for returning migrants when it left the EU.
He also called on the French president to assist in a number of efforts, including the establishment of "joint patrols to prevent more boats from leaving French beaches."
Britain hopes that London and Paris can deploy airborne surveillance and advanced technology, such as sensors and radar, to enhance monitoring of the English Channel. The goal is to achieve "better real-time intelligence-sharing to deliver more arrests and prosecutions on both sides of the Channel," according to Johnson's memo.
While the UK PM has placed blame for the migrant fatalities on France, French Interior Minister Gérald Darmanin has said "there is bad immigration management" in Britain.
Earlier on Thursday, Macron acknowledged that the 17 men, seven women, and three teenagers who died on Wednesday were fleeing poverty and were taken advantage of by traffickers.
The French president also defended the government's efforts, noting that a historic number of French security forces have been mobilized along the French coast. Paris has vowed a "maximum mobilization" of French forces.