Hundreds of people queued from the early hours outside UK shops selling the latest edition of French satirical magazine Charlie Hebdo.
It comes as around 10 people have been arrested and questioned over the "possible logistical support" they may have provided three gunmen who carried out last week's attacks in Paris, Agence France-Presse reports.
More than 50 verbal and physical attacks have been recorded against Muslims in France in the past week in what religious leaders in the country have called an "unprecedented" rise in Islamophobic attacks.
Agence France-Presse reports that the Islamophobia Observatory of the French Council of the Muslim Faith, which monitors such incidents, has gathered information from police forces across the country.
Observatory president Abdallah Zekri said 21 physical incidents had been recorded, including bullets being fired at a mosque and objects being thrown, along with 33 threats. And, as the figure does not include Paris or its suburbs, Mr Zekri said he believes the number could be much higher.
The figures from the past week alone are almost half the total number of incidents recorded in the first nine months of last year.
Mr Zekri has now called for security around mosques to be stepped up further.
About 7,000 French Jewish people left the country last year and have moved to Israel because they did not feel safe.
The aunt of a man killed while trying to overpower gunman Amedy Coulibaly has told ITV News her family is fearful of their future in France.
A Muslim cleric in Pakistan has held a ceremony to honour Cherif and Said Kouachi, the two men suspected of the Charlie Hebdo massacre.