NPAPI (was: java web start / error)

Daniel Nebdal dnebdal at
Fri Apr 2 12:57:47 UTC 2021

On Fri, 2 Apr 2021 at 04:07, Graham Perrin <grahamperrin at> wrote:
> On 05/03/2021 14:01, Antonio Olivares wrote:
> > … worked well with firefox-esr which I use because the plugins
> > are deprecated using the newer firefox.  Despite that it also used to
> > work with the regular firefox. …
> For reference – I dug up some of what's below in response to a question
> in IRC about <>:
> Removal of NPAPI plugin support in Firefox 85
> <>
> Java Plugin is Removed from JDK 8u for Linux, Solaris, and MacOS Platforms
> <>
> <> no recent activity, and
> related <> does not respond.
> <> about Pale Moon.

At this point, it may be easier to get hold of an old OS, an old copy
of Firefox, and an old Java plugin, install them in a virtual machine,
and firewall it so the VM only has access to that one site. Much like
VHS, you apparently need to view it on preserved tech of a similar
vintage. On the positive side, a setup like that should at least keep
working indefinitely, unless they also manage to use HTTPS
certificates an old browser can't understand.

Daniel Nebdal

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