William — part of Mozilla’s Marketing team in Europe — writes, “I’m very happy to officially announce that a Mozilla Add-ons Workshop will take place in Paris on Saturday September 20th, 2008. The aim of the one-day workshop is to spur interest and encourage extension development targeted towards specific locales. The first workshop will be focused on extensions in French, gathering developers mainly from France, Belgium, Luxembourg and Switzerland but we hope it will be the first of many regular workshops organised across Europe.” For more information including a rough schedule for the day, see William’s blog post.