Remote JAR support has been completely removed

Published: | Categories: Networking, Privacy & Security


Firefox 61 has finally removed the support for loading remote Java archive (JAR) files, which had been disabled by default since Firefox 55 but could be enabled using the browser’s hidden preference when necessary.

IBM iNotes, the only web application known to had relied on JAR, was updated in May 2016 to stop using JAR components in Firefox. Given that no other browsers support JAR, the compatibility risk should be very low at this time.