Nope. No tax at all for France Residents. Tax are applied to those publishers who are residents of the US or hiring any service from US for their website management.
http://www.howtobooks.co.uk/property/france/income-tax.asp It gives the following table for taxes in France: The first €5,666 of taxable income is tax free €5,666 to €6,166 - 5% €6,166 to €7,000 - 10% €7,001 to €10,833 - 15 % €10,834 to €14,000 - 20% €14,001 to €18,333 - 25% €18,334 to €21,333 - 30% €21,334 to €25,334 - 35% €25,334 to €41,000 - 40% €41,001 to €58,000 - 45 % €58,001 to €67,166 - 50% €67,167 to €77,333 - 55 % €77,334 and upwards - 58% (1€ = 1.5 US$) not as bad as I thought