As of March 1st of this year, almost all of the taxi information contained in the above link and elsewhere is obsolete. The course d´approche or approach fee is eliminated for all Taxis Parisiens. The new fares are as follows:

• The meter starts when passengers are picked up.
• For taxis called in advance, the meter starts at the pickup time or when passengers are boarded, which ever is first.
• For taxis called in advance and the taxi arrives late, the meter starts when passengers are boarded.

There are also new fares between Paris and the airports:

• CDG to/from Paris Right Bank - 50€
• CDG to/from Paris Left Bank - 55€
• ORY to/from Paris Right Bank - 35€
• ORY to/from Paris Left Bank - 30€

Some fees have been changed or eliminated:

• Baggage fees are eliminated
• Calls for immediate pickup - 4€
• Calls for pickup at a later time - 7€
• Fees for a 4th passenger are eliminated
• The fee for a 5th and for each subsequent passenger is 4€.
• The meter starts at 3.83€
• The minimum fare of 7€ is not changed.

Taxi drivers are generally not tipped.

A summary of these changes may be found here.