I would like to know if it's possible to find out which extension is use for a specific thing.
I have naviguate a lot on wikipedia and sometimes I found some functionality that I would like to implement on my mediawiki.
For exemple in : https://fr.wikipedia.org/wiki/Rivalité_entre_l'Angleterre_et_l'Argentine_en_football#Articles_connexes
I would like to know what extension is use to make the display/hide of the green block.
If you have an idea or solutions, it could be really helpfull.
Thanks by advance.