''<p>Dropa [[#answer-1558949|said]]</p>'' <blockquote>If so here did you also install the lastest Java 19.0.1 version to verify that it needed java software to run this is separate from javascript itself. </blockquote> NPAPI Plugins has not been able to run in Firefox since 52.0, though Flash Player was supported for a while till early 2021. Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work? https://support.mozilla.org/en-US/kb/npapi-plugins

See also: *https://esign.com/ *https://www.google.com/search?sa=N&num=100&q=esign