How many people speak French in Gabon?

About 80% of the population of Gabon speaks French either as a first language or a second language.
up until 1970 gabon was a mainly french based culture and now only about 10% of the population speak french

French is the most spoken language in Gabon. The above answer is not true. Only 10% are native speakers of French, but about 80% can speak it fluently.
About 80% of the population of Gabon speaks French either as a first language or a second language.
Almost everybody in Gabon speaks French.