diff --git a/security/Makefile b/security/Makefile
--- a/security/Makefile
+++ b/security/Makefile
@@ -36,6 +36,7 @@
     SUBDIR += assh
     SUBDIR += authenticator
     SUBDIR += authoscope
+    SUBDIR += autofirma
     SUBDIR += autossh
     SUBDIR += aws-c-auth
     SUBDIR += aws-c-cal
diff --git a/security/autofirma/Makefile b/security/autofirma/Makefile
new file mode 100644
--- /dev/null
+++ b/security/autofirma/Makefile
@@ -0,0 +1,47 @@
+PORTNAME=	autofirma
+DISTVERSION=	1.9
+CATEGORIES=	security
+MASTER_SITES=	https://firmaelectronica.gob.es/content/dam/firmaelectronica/descargas-software/autofirma19/
+DISTNAME=	Autofirma_Linux_Debian
+
+MAINTAINER=	fernape@FreeBSD.org
+COMMENT=	Spanish Government digital signature application
+WWW=		https://sedediatid.digital.gob.es/es-es/firmaelectronica/Paginas/AutoFirma.aspx
+
+LICENSE=	GPLv2 EUPL11
+LICENSE_COMB=	dual
+LICENSE_FILE=	${WRKSRC}/usr/share/common-licenses/eupl-1.1.txt
+
+LIB_DEPENDS=	libnss3.so:security/nss
+
+USES=		desktop-file-utils java zip
+JAVA_VERSION=	24
+JAVA_VENDOR=	openjdk
+
+DATADIR=	${JAVASHAREDIR}/${PORTNAME}
+
+NO_BUILD=	yes
+
+SUB_FILES=	${PORTNAME} \
+		Autofirma.js \
+		afirma.desktop \
+		pkg-message
+SUB_LIST+=	JAVA_HOME=${JAVA_HOME} \
+		JAVA=${JAVA}
+
+WRKSRC=${WRKDIR}
+
+post-extract:
+	${TAR} -C ${WRKDIR} -xvzf ${WRKDIR}/autofirma_1_9.deb
+	${TAR} -C ${WRKDIR} -xvzf ${WRKDIR}/data.tar.gz
+	${ZIP_CMD} -d ${PORTNAME}.jar "nss/WINDOWS/*" "windows/*" "osx/*" "linux/*"
+
+do-install:
+	${MKDIR} ${STAGEDIR}${DATADIR}
+	${INSTALL_SCRIPT} ${WRKDIR}/${PORTNAME} ${STAGEDIR}${PREFIX}/bin/
+	${INSTALL_DATA} ${WRKSRC}/usr/lib/Autofirma/autofirma.jar ${STAGEDIR}${JAVAJARDIR}
+	${INSTALL_DATA} ${WRKSRC}/usr/lib/Autofirma/Autofirma.png ${STAGEDIR}${DATADIR}
+	${INSTALL_DATA} ${WRKDIR}/afirma.desktop ${STAGEDIR}${PREFIX}/share/applications/
+	${INSTALL_DATA} ${WRKDIR}/Autofirma.js ${STAGEDIR}${DATADIR}
+
+.include <bsd.port.mk>
diff --git a/security/autofirma/distinfo b/security/autofirma/distinfo
new file mode 100644
--- /dev/null
+++ b/security/autofirma/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1762021451
+SHA256 (Autofirma_Linux_Debian.zip) = c29c251f2ee9f00dfc87f9582677dbd436a83565986ab0417ff065ceae716798
+SIZE (Autofirma_Linux_Debian.zip) = 67295518
diff --git a/security/autofirma/files/Autofirma.js.in b/security/autofirma/files/Autofirma.js.in
new file mode 100644
--- /dev/null
+++ b/security/autofirma/files/Autofirma.js.in
@@ -0,0 +1,4 @@
+pref("network.protocol-handler.app.afirma","%%LOCALBASE%%/bin/autofirma");
+pref("network.protocol-handler.warn-external.afirma",false);
+pref("network.protocol-handler.external.afirma",true);
+
diff --git a/security/autofirma/files/afirma.desktop.in b/security/autofirma/files/afirma.desktop.in
new file mode 100644
--- /dev/null
+++ b/security/autofirma/files/afirma.desktop.in
@@ -0,0 +1,16 @@
+[Desktop Entry]
+Encoding=UTF-8
+Version=1.9
+Name=Autofirma
+Type=Application
+Terminal=false
+Categories=Office;Utilities;Signature;Java
+Exec=%%LOCALBASE%%/bin/autofirma %u
+Icon=%%DATADIR%%/Autofirma.png
+GenericName=Herramienta de firma
+Comment=Herramienta de firma
+MimeType=x-scheme-handler/afirma;
+StartupNotify=true
+StartupWMClass=autofirma
+Name[es_ES]=Autofirma
+
diff --git a/security/autofirma/files/autofirma.in b/security/autofirma/files/autofirma.in
new file mode 100644
--- /dev/null
+++ b/security/autofirma/files/autofirma.in
@@ -0,0 +1,5 @@
+#!/bin/sh
+export AFIRMA_NSS_HOME_ENV=%%LOCALBASE%%/lib/
+JAVA_OPTS="-Djdk.tls.maxHandshakeMessageSize=65536 \
+		   -Des.gob.afirma.keystores.mozilla.UseEnvironmentVariables=true"
+%%JAVA%% ${JAVA_OPTS} -jar %%JAVAJARDIR%%/autofirma.jar "$@"
diff --git a/security/autofirma/files/pkg-message.in b/security/autofirma/files/pkg-message.in
new file mode 100644
--- /dev/null
+++ b/security/autofirma/files/pkg-message.in
@@ -0,0 +1,9 @@
+[
+{ type: install
+  message: <<EOM
+You can install the preferences file Autofirma.js in your Firefox profile:
+
+ln -s %%DATADIR%%/Autofirma.js ~/.mozilla/firefox/xxxxxxx.default-release/
+EOM
+}
+]
diff --git a/security/autofirma/pkg-descr b/security/autofirma/pkg-descr
new file mode 100644
--- /dev/null
+++ b/security/autofirma/pkg-descr
@@ -0,0 +1,4 @@
+AutoFirma is a desktop application that allows signing documents with digital
+certificates.
+It is the official digital signature application of the Spanish Government and a
+requirement for many digital procedures.
diff --git a/security/autofirma/pkg-plist b/security/autofirma/pkg-plist
new file mode 100644
--- /dev/null
+++ b/security/autofirma/pkg-plist
@@ -0,0 +1,5 @@
+bin/autofirma
+share/applications/afirma.desktop
+%%DATADIR%%/Autofirma.js
+%%DATADIR%%/Autofirma.png
+%%JAVAJARDIR%%/autofirma.jar