LaFrance joined The Atlantic in 2014, became editor of the website in 2017, then executive editor in 2019.[6] Formerly a staff writer,[7] she covered technology, politics and the media.[5] Her writing appeared in The New York Times, The Washington Post, Gawker, Slate, The Awl, and several other newspapers and magazines.[3]
LaFrance was on Fresh Air in 2020, where she talked about what it is like to be a person for whom facts matter, but to be immersed in QAnon and conspiracy theories for her reporting.[8] Her reporting, titled "The Prophecies of Q", was called a recommended read to understand the group's storytelling techniques by CNN's media reporter.[9]
She also spoke about gender imbalance in American news media on the radio program On Point.[10]