Why do most browsers' User-Agent strings begin with 'Mozilla/5.0'? | MCQ Hive

Multiple Browsers Browser Engines & History Beginner

Q Why do most browsers' User-Agent strings begin with 'Mozilla/5.0'?

A Because it identifies Firefox
B Because it is required by HTTP/2
C Because they are all built by Mozilla
D For historical compatibility, because sites once served better content to 'Mozilla' (Netscape) browsers

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