The retailer wants to get a record number of people involved in secret santa - the practice of buying gifts but giving them anonymously.
invites users to spend £9 on a choice of one of 18 gifts to be given to a mystery person, and then receive one in return.
The range of products on offer, from a set of Classic Airfix Toy Solders to a packet of chocolate-covered ants, and they could be sent anywhere in the world. Participants are able to write a personalised message in the present before it is despatched.
Christian Robinson, managing director of Firebox.com, said: "Global Secret Santa is all about surprising and connecting people. To think that there will be people this Christmas getting gifts from strangers they've never met, from the other side of the world is just amazing. The buzz has been brilliant so far and we are thrilled about the prospect of setting a new world record."
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