Java plugin not detected on Pale Moon on Mac OS

Discussions for the Apple Mac OS builds of Pale Moon

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maria_
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Java plugin not detected on Pale Moon on Mac OS

Unread post by maria_ » 2025-01-12, 22:52

Hello,

I need to run Java on MacOs for some pages but I have not been able to use it. I have been reading about some indications for linux (ln -s /usr/lib/jvm/jre[ver]/lib/amd64/libnpjp2.so ~/.mozilla/plugins/libnpjp2.so) but I have not found anything for Mac. I have now ARM versions of both Java and Pale Moon but I also tried the Intel versions and did not work either. When I check about:plugins No installed plugins found.
Current versions:
Pale Moon Version 33.5.0 (64-bit)
Java Version 1.0 (1.8.0_431)

I do not know what is the issue or if there is some possible solution. Thanks.

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Veit Kannegieser
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Re: Java plugin not detected on Pale Moon on Mac OS

Unread post by Veit Kannegieser » 2025-01-14, 20:58

Hello,
maria_ wrote:
2025-01-12, 22:52
ln -s /usr/lib/jvm/jre[ver]/lib/amd64/libnpjp2.so ~/.mozilla/plugins/libnpjp2.so
The plugin library only exist in older java versions.
At work, i have a /usr/lib/jvm/jdk1.8.0_152/jre/lib/amd64/libnpjp2.so,
which appears in Pale Moon as

Code: Select all

Java(TM) Plug-in 11.152.2 11.152.2
Next Generation Java Plug-in 11.152 for Mozilla browsers
maria_ wrote:
2025-01-12, 22:52
Java Version 1.0 (1.8.0_431)
Update 431 has the plugin already removed. https://www.oracle.com/java/technologies/javase/8u271-relnotes.html
I guess it is possible to copy the plugin from an old release into a current 1.8 release.

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moonbat
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Re: Java plugin not detected on Pale Moon on Mac OS

Unread post by moonbat » 2025-01-18, 02:26

Veit Kannegieser wrote:
2025-01-14, 20:58
I guess it is possible to copy the plugin from an old release into a current 1.8 release.
It won't work without the internal API for the plugin which would also have been removed. Best to just install the last release which had it working and live with the unpatched security risks.
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Re: Java plugin not detected on Pale Moon on Mac OS

Unread post by Moonchild » 2025-01-18, 11:05

I agree with Moonbat. As it is, Java plugin use should be limited to trusted software to begin with, so you can use a usable even if unpatched Java installation as long as you keep use of it restricted to explicitly trusted locations and apps.
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maria_
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Re: Java plugin not detected on Pale Moon on Mac OS

Unread post by maria_ » 2025-01-20, 18:06

I understand. Actually I need it for pages from public organisms, they have apps to sign documents that only work with java (I guess they should be trusted pages).
I tried to download java 8u261 (and other previous versions) both jdk and jre but there seems to be some problem and it doesn't complete the installation. Do you have any other suggestion?

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Kruppt
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Re: Java plugin not detected on Pale Moon on Mac OS

Unread post by Kruppt » 2025-01-21, 15:25

maria_ wrote:
2025-01-20, 18:06
<snipped>
I tried to download java 8u261 (and other previous versions) both jdk and jre but there seems to be some problem and it doesn't complete the installation. Do you have any other suggestion?
Download for your OS/architecture here:
https://jdk.java.net/23/
https://www.oracle.com/java/technologie ... ?er=221886

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Veit Kannegieser
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Re: Java plugin not detected on Pale Moon on Mac OS

Unread post by Veit Kannegieser » 2025-01-21, 21:38

Installed jre-8u431-windows-x64.exe today, and Pale Moon found it as:

Java(TM) Platform SE 8 U431 11.431.2.19
Next Generation Java Plug-in 11.431.2 for Mozilla browsers (more)
[ask to activate]

(known security problems..)
Java Deployment Toolkit 8.0.4310.10 11.431.2.10 (disabled)
NPRuntime Script Plug-in Library for Java(TM) Deploy (more)
[never activate]

So the Oracle version differs from the open versions.

Then In the office the Alcatel-Lucent phone box would like to have Java 1.4. Hard to get that on todays OS.

Maybe make a virtual machine to keep the stuff to access Java stuff.

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maria_
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Re: Java plugin not detected on Pale Moon on Mac OS

Unread post by maria_ » 2025-01-22, 19:24

I finally got it working. I tried to download several java versions and the one that I had no problem with was jre 8 (no update).
I also had to install the Intel version of Pale Moon because the first ARM java version was 8u381 which does not have NPAPI plugin. Anyway, thanks everyone for the advice here and in other posts (I couldn't have done it otherwise).

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