@Paul Taylor @кαяισzмαяку and other spanish-speaking people - you can also suggest improvements here... you would help me a lot, since I don't speak spanish very well yet:

post2friendica was unable to detect a text field
-> post2friendica no ha descubrido algún campo de texto

Make sure you supplied an URL ending with /network in the addon preferences.
-> Pon a salvo que el URL de Friendica (véase preferencias de las extensiones) acaba en /network.

post2friendica URL error
-> post2friendica: error de URL

The URL you specified in the addon preferences does not point to a Friendica site.
-> El URL que has introducido en los preferencias de las extensiones no es de una sitio web de Friendica.

Share page on Friendica
-> Compartir sitio web en Friendica

Share image on Friendica
-> Compartir imagen en Friendica

Share link on Friendica
-> Compartir enlace en Friendica

Share selection on Friendica
-> Compartir selección en Friendica

post2friendica configuration
-> Configuración de post2friendica

The addon needs the URL of your Friendica site. You can reconfigure the addon later in the preferences section of the extension manager.
-> Tienes que introducir la dirección de tu sitio web de Friendica. Puedes encontrar estas configuraciones en el mánager de complementos.

Friendica URL (should end with /friendica)
-> URL de Friendica (debe acabar en /network)

OK
-> ¡bueno!

Configuration successful.
-> Configuración llevada a buen fin.

@Manuel Pérez I see you are doing the spanish translations for friendica, could you have a short look if the spanish translation is correct? Then I can publish the new version soon.

Thanks a lot! Great!

new version submitted for review

@Leberwurscht Brot Sorry for not picking this up. I am not a native Spanish speaker and am therefore not the best person to ask. @Manuel Pérez or @Miguel A. M. are much better options.

Just completed french translation.

Great, thank you!