Swiss police have said the fatal wingdiving accident occurred among a group who were in the region as guests of a company that makes extreme sport films for the internet.
Although police have yet to confirm the victim's identity, he is understood to be Olympic stuntman Mark Sutton.
Police, though, said: "The victim, a Briton, was 42 years old. He was staying in Chamonix (in France) with 20 followers, considered among the best in the world in this discipline."
More top news
The Russian government has launched a campaign urging people to take safer selfies after after high-risk poses resulted in dozens of deaths.
Actor Harry Shearer who is the voice of Mr Burns, Ned Flanders and Principal Skinner has re-signed for a 27th season of The Simpsons.
The 25-year-old Swede has made a fortune posting videos of himself playing computer games online.