Online application through the embassy in France
Other permitEligibility for online applications is not specified.

Congo visas
Eligibility for online applications is not specified.
Visa applications can be submitted online through the Republic of the Congo embassy in France website. An electronic visa was planned, but its launch is not confirmed.
Yes. Rules depend on the country that issued your passport. Open the Congo visa page and choose your passport for a plain answer.
Yes. Officials can refuse a visa or entry, even after you apply. Give true answers, bring the documents asked for, and keep proof of your onward trip and money.
On the Congo's official immigration or foreign ministry website, or at its embassy. Rules change, so check close to your trip.
Often you cannot switch visa type inside the country. Ask the immigration office before you travel if you might need to.
Reviewed by @snuck