No French in the frontend

I've intalled Component GMAPFP 9 for Joomla 2.5.
I get an issue with english strings which are not translated in the frontend. I get "Click on the marker for more informations", "Address", "Phone", etc.
I've checked that the file fr-FR.com_gmapfp.ini is on the language folder of joomla installation.

Any suggestions?
Regards.

Ooops, I forgot to set the default language to french after I use upgrade my Joomla version.
Thank you.