Are FDI and Islam in conflict with one another in the eyes of Tunisians? Does support for globalization fall or increase when it embraces or challenges Islamic dress, prayer, and other practices? We examine through different experimental tests how Tunisians react to foreign direct investment when it accommodates or conflicts with Islamic norms. Using three original sources of data, including a large representative survey (N = 4,986), a conjoint survey experiment (N = 1,502), and an original survey experiment with experimental social vignettes (N = 504), we examine how threats (and non-threats) from FDI to Islamic norms affect support for FDI. We find strong support for FDI, but these levels of support are not stable. We find the support for FDI falls by almost 32% if it is seen to clash with female Islamic dress. Support is highest when it accommodates Islamic practices, especially the female hijab and lowest when it is perceived to disregard these practices.