Folly was born in Conakry, Guinea in 1978. She spent her early childhood years in Conakry before her family relocated to Nairobi, Kenya in 1987.^[7]

Folly Bah Thibault obtained a Baccalaureate in French literature with honours. She then pursued her higher education and earned a Bachelor's degree in Broadcast Journalism From Howard University in the United States,

and a Master's degree in International Communication from American University in Washington, D.C. She is Fluent in French, English, and Peuhl, she also has a good understanding of Spanish and Swahili^{[8][9][10][11][12]}

Folly Bah Thibault's broadcasting journey commenced nearly two decades ago at Voice of America in Washington D.C., where she hosted a show aimed at reuniting families separated by conflict in Sierra Leone and Liberia. She later worked for Radio France International in Paris before joining France24 television as an anchor. In 2010, she became a principal presenter for Al Jazeera English.^[13][14][15] she has covered significant global events such as the Arab Spring and the conflicts in Syria, Yemen, and Libya. She is recognized as one of the most prominent journalists globally, with her work shedding light on overlooked crises worldwide^[16][17]  Folly as a renowned moderator, hosted the first ever debate of candidates for United Nation Secretary General  post In July 2016, and as co-host of the Nobel Peace Prize Interview in Oslo in December 2016.^[18][19][20] she has interviewed Peace Prize Laureates including former Colombian president Juan Manuel Santos, Congolese Right Activist Denis Mukwege, Kailash Satyarthi, and  Iraqi Campaigner Nadia Murad.^[21][22][23]

Folly has also interviewed some of the world's top leaders like; Amina Mohammed, the highest-ranking woman at the United Nations, serving as Deputy Secretary-General,  France's far right leader Marine Le Pen, former Kenya president Uhuru Kenyatta, former Senegal president Macky Sall, Nigerian playwright and activist Wole Soyinka, and Senegalese-American musician Akon.^{[24][25][26][27][28][29]} She has extensively reported on global events of significant magnitude, including the 2004 tsunami and the historic election of Barack Obama as President of the United States in 2008. Her coverage extends beyond headline-grabbing events to encompass humanitarian and immigrant issues across continents, ranging from Africa to South America and beyond. Folly has moderated panel discussions and high level summits for organisations including the United Nations, the European Union, the African Union, and the Brookings Centre.^{[30][31][32][33]}

In April 2023 Folly Bah Thibault was appointed as Global Champion for Education Cannot Wait's (ECW), the United Nations global fund for education in emergencies and protracted crises.^{[34][35][36][37][38][39]}

Folly is married and has three sons.^[40]