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.
The Archbishop of Canterbury has appeared to distance himself from the Pope's suggestion that people who mock religion should "expect a punch".
Speaking to ITV News, Most Rev Justin Welby said that he witnessed some "viciously" attacking the Church - including French magazine Charlie Hebdo - but added: "We live in a society where I may be offended but I'm not going to respond aggressively."
"We have to be robust about the way in which we are criticised and there have to be very clear limits as to what is acceptable," he added.
"Things that stir up hatred, things that stir up the despising of other people are things that are intolerable."
On Friday, Pope Francis criticised the French satirical magazine for publishing an image of the Prophet Mohammed, saying: "You can't insult the faith of others."
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.