Assuming their dates are 1960 or later, your coins would be ordinary circulation coins that were in use up to early 2002 when they were replaced by euros.
In early 2012, French banks definitely stopped to accept the old currency. They can only retain some value as collectible items. In that regard, coins issued after WWI have a value close to nothing, especially if the coin had been circulated.
Chat with our AI personalities
The value of any note depends on the age, condition and denomination.
An uncirculated 1966 5 Francs note, for example, is worth $100.
The 1952 French 100 Franc note in mint uncirculated condition is worth $200+. Very Good quality used notes are worth about $10.