Facebook is an important marketer and they are weathering the downturn in advertising better than traditional ad firms.
Rivals Amazon, Apple and Google also reported healthy results last week despite the US economy retracting by 30%.
Last week a congressional antitrust panel questioned Bezos, Tim Cook of Apple, Zuckerberg and Sundar Pichai of Alphabet - about their market power and business practices.
It was part of a broader inquiry by regulators and lawmakers into the dominance of the tech giants, with open investigations from the Justice Department, the Federal Trade Commission and state attorneys general.
