https://addons.opera.com/it/extensions/details/signtextlsf/
Estensione signTextLSF - Componenti aggiuntivi di Opera
This extension emulates Netscape's crypto.signText() using LSF.
componenti aggiuntiviestensionediopera
https://addons.opera.com/nb/extensions/details/signtextlsf/
signTextLSF utvidelse - Opera-tillegg
This extension emulates Netscape's crypto.signText() using LSF.
operatillegg