Comments on: A fix for Java applets not loading in Firefox

By: Eve S

Eve S — Fri, 20 Aug 2010 19:53:48 +0000

Thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you sooooooooooooooooooo much!!!!!!!!!!!!!!!! Now my java works again!!!! Thank you!!!!!!!!!!

By: Nick B

Nick B — Thu, 01 Jul 2010 20:44:49 +0000

I’ve been having this problem too for a while. I’m glad I found your post! It’s such a weird issue, because both Firefox and IE seemed to think Java was installed, but it obviously wasn’t!

This was on Windows 7, IE 8, Firefox 3.6.6.

By: ken

ken — Tue, 22 Jun 2010 15:36:52 +0000

This fix is still valid. I’m running xp pro, sp3, latest java firefox 3.0.18.
I would only get the Java loading image, and could never get java to work, or only partially.
I did a search for npoji*.dll and npjpi*.dll and copied the latest versions found to my Firefox/plugins folder, and restarted Firefox.
Voila !!! all things working as they should now.

Thanks for keeping this thread up :)

By: chris

chris — Sat, 22 May 2010 23:01:46 +0000

This fixed my issue thanks. Running xp sp3/32bit..ff v3.63 btw.
I realized I had a problem when I was doing a cross browser check on a website I’m building and java app wasn’t working in ff only…
The only change I made in ff was that I installed Google toolbar and removed the bookmarks toolbar…if that’s any interest.

Thanks Again!

By: Marek

Marek — Fri, 16 Apr 2010 03:14:40 +0000

I had this issue with IE8 32-bit and 64-bit,
Firefox 3.0.1 and 3.6.3 32-bit, and also Minefield
(Firefox 3.6.3) 64-bit on my Toshiba Satellite A505-S6979 laptop running under Windows 7 6.1 Home Premium 64-bit with installed jdk-6u19, both 32 and 64 bit.

None of the browsers displayed applets and 64-bit browsers displayed blank web pages.

Tools>Add-ons and about:plugins for all the browsers showed the “next-generation Java Plug-in installed.

Windows Control Panel>Programs showed an icon for “Java”. Under this link > tab Advanced
the Settings tree, Java Plug-in item had a check box
for option “Enable the next-generation Java Plug-in”
which was grayed out and impossible to uncheck.

After having read about your fix on this page,
I uninstalled both versions of Java and first re-installed the 32-bit version only.

I went to the Windows Control Panel again and found there a different link to Java, pointing, this time
to “Java 32-bit”.

I opened this Java Control Panel and found that
now I could uncheck the check box for “Enable the next-generation Java Plug-in” option, which I did.

After that 32-bit browsers displayed web pages and applets correctly while 64-bit browsers displayed web pages but without applets.

Firefox Tools>Add-ons list showed a different
Java Plug-in as installed. This time it was the
“Classic style” Java Plug-in.

These were apparently npjpi160_19.dll
and npoji610.dll plug-in files.

In the next step I re-installed Java jdk-16u19 64-bit.

Now all the browsers (32-bit and 64-bit) display web pages and applets correctly. The Firefox Tools>Add-ons list again only the “next-generation Java Plug-in” as installed.

The Windows Control Panel again shows a link to
“Java” only and, as previously, the “Enable the next-generation Java Plug-in” option, under the Advanced tab, is grayed out.

Everything works as it is supposed to.

By: Bob

Bob — Mon, 18 Jan 2010 19:57:16 +0000

You rock… I was pulling my hair out and your fix worked… XP Firefox ver 3.5.7 Java 6

By: Eldrikt

Eldrikt — Sat, 02 Jan 2010 18:48:55 +0000

Thanks alot for that fix. Works like a charm!

By: Rodri

Rodri — Sat, 26 Dec 2009 12:43:48 +0000

Thanks for the Java fix Matthew! It worked for me and solved the problem in one minute. Windows Vista and Firefox 3.5.6.

By: Kayla

Kayla — Thu, 17 Dec 2009 02:26:11 +0000

Thank you so much for this fix. I have been dealing with this problem since I received my laptop. Thank you!

By: Alan Robinson

Alan Robinson — Thu, 10 Dec 2009 19:58:31 +0000

Thank you so much. It took me 9 seconds to do the fix and it worked.