The mailing list for listmasters using Sympa

[Gadi Vivier <address@concealed>]

Hi,

As listmaster I've set the language of a new list to French.

Edit List Configuration > List definition > Language of the list (lang) 
> Francais (fr)

On the list's info page, all the link words such as  "Subscribe, 
Unsubscribe, Archive, Post" are still in English.

The email template messages that get sent (for example: to new 
subscribers) are in French. That's all good so no problem there.

However, when the new subscriber clicks on the confirmation link in the 
French email, they get taken to a Sympa English confirmation web page:

   Subscribe
   Do you really want this action to be taken?
   Confirm Cancel

Ideally I'd like the webpages to also be in French.

Have I missed something in my setup or would I need to edit the Sympa 
web template files?

Using Sympa 6.2.54 (installed from source) on Debian 10.

Thanks for any pointers,
Gadi