This article was originally published on 28/03/2005.
Firefox browser could not display Java applets following a recent upgrade to the Firefox browser and the Java JRE. A simple solution found.
A little background to this story. As a devout convert to the Firefox browser, I immediately upgraded to the latest release, Version 1.0.2, when it became available. Shortly after upgrading the Firefox browser I found I was unable to access my internet banking account, and was displayed a standard message from the internet banking service that my browser did not have Java installed. Necessity forced me to use IE, which worked with no problems. I had also accessed the internet banking account through Firefox only a few days previously, so there was something wrong with Firefox!
I dutifully checked my browser settings and Java was enabled. I then checked the Java control panel and noticed that the option to use Java with Mozilla/Netscape was unchecked. Found the culprit? Unfortunately not. After checking the option and pressing apply, I was informed that the action could not be completed as I did not have sufficient rights to change the browser settings. Now this was a concern, as I am administrator, super-administrator, and any other kind of controlling power over my pc, or so I thought.
Time to start on a solution, so Google in hand I went on a wild search for others who had faced the same problem. It would seem that this is a reasonably new problem (at the time of writing), as very few results were returned. Those results that were on-topic offered a selection of causes/solutions, none of which worked for me. As a result of trying each solution in turn, and scouring through the folders and files associated with both Firefox and Java, I did find what was the apparent cause of the problem in my case. On the latest update to the Java JRE, the Java Plugin dll had not been updated in the Firefox plugins folder. On a whim I renamed the existing Java plugin dll and fired up Firefox again, and hey presto, everything was working. Now I don't know why the original dll had not been updated, but it hadn't, and I don't know if this solution will work for everybody, but it did for me, and I offer this advice in the hope that it can help somebody in the same position as I found myself.
Symptoms:
- Unable to view Java applet content in Firefox browser
Cause:
- Upgrade of Java JRE to version 1.5.0_02 does not update Java plugin dll in Firefox plugins folder
Solution:
- Delete previous Java plugin dll file NPOJI610.dll from Firefox plugins folder.
- Prior to deleting the file I would suggest renaming the file (zz_NPOJI610.dll) to test that this solution works for you.
Machine Spec:
- Windows XP Pro SP1
- Firefox 1.0.1
- Java JRE 1.5.0_02
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I am not as computer literate as most of you…I have had a problem with java and firefox and would love a clear, step-by-baby-steps- approach to fixing this dll issue.
Anyone want to help a poor soul
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Shelly: I installed a wrong dictionary and after that I had problems with my java. Firefox was warning me about the German dictionary but I ignored the warning. Later I deleted the new Sun Java version ( the old one was workig ) did some reading on the Internet and they said that the new Sun Java version was not competable with Firefox and they look to fix the program. Many weeks later my Java did an automatic update and Firefox was working again. Try to update your Java. Try to update your Firefox too.
Try this one " I couldn't find the file NPOJI610.dll in firefox/plugin folder. But I find it in my java/bin folder and copied it to the firefox/plugin folder. It WORKED!
"
Do a search on your computer with:NPOJI610.dll
Is it in your firefox plugin folder? -
I've been trying to figure this problem out for a LONG time. I just happened to come across your site and everything works fine now! THANK YOU!
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After updating to java 1.6.0.30.5,if Igo to one particular web site I get a general exception error,firefox will not download any more and I have to reinstall it
(every time ).I haven't got a npoji___ .dll in firefox or java,and it's only happened since.Has anybody got any ideas,Im lost. rob
installing 1.6.Java Plug-in 1.6.0_03
Using JRE version 1.6.0_03 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\Rob—————————————————-
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to
—————————————————-java.lang.NumberFormatException: For input string: "#003366"
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at Marquee.init(Marquee.java:122)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.NumberFormatException: For input string: "#003366"
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at Marquee.init(Marquee.java:122)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source) -
i tried to uninstall firefox, update, reinstall java runtime,…etc.
now just rename the dll file, and everything works fine
Great job!
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The renaming worked for me. Thanks! i've been pondering for this for a long time now.
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I just got a new laptop with Vista Home Premium and I didn't find the dll in Firefox's plugins folder. So I went to java's site and downloaded the latest java here:
http://www.java.com/en/download/
At the moment, the latest is Version 6 Update 3.
I didn't have to delete or uninstall anything. I just installed the new java version and now I can connect to my web host's Unlimited FTP site.
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You are a wonderful and kind person lol. This has driven me absolutely mad for a couple weeks, and I'm embarrassed to list all the things that I've tried…that have all failed. Kudos and thanks!
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HI ALL
I m using linux plateform,with firefox2.0 version(latest).
I have jre installed on my comp. but still i m not able to see java applets window.
Plz i will be very oblized if u can give me a solution.alishiya
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Hello you fine people
I'm using Vista Premium, Firefox 2.0.0.11 and Java JRE 1.6.0.4
I have tried all the advises from this thread, but Java is still not working in Firefox.
Can someone tell me how to fix this issue.
Thanks.
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Hello all,
I am hoping somebody can help. I cannot install the latest java update 1.6/6. I keep getting the message that" the installation of the update to the java platform was not completed. I am using firefox 2.0.14 …………..any ideas?
thanks
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Hi.
you need to help me! I forget already what did i done. But eclipse can be opened and any website that have a java applet that i surf make my firefox and IE stop working..
But my java application doing well..I'm using vista, because of my pc enable to start, i thought there is something wrong, so i uninstall java(TM) 6 update 4 , 5, 7
maybe because of that..please tell what to do.
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i have a problem with my firefox whenever i open a site it pops up a dialogue saying : "firefox doesnt know how to open this address,because the protocol (javascript) is not associated with any program… yet i have java enabled …i need some help
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Hi Martik, this sounds like the config settings in Firefox have changed. Follow the steps below to check/reset the settings.
Note: the following steps require you to make changes to the internal workings of the Firefox browser. Messing around with the config settings can quickly get you into trouble and leave you with a bricked browser. You have been warned!
- Open firefox
- In the address bar type: about:config
- Read and accept the "here be dragons" warning
- In the Filter box type: network.protocol-handler.external.javascript
- The value here should be false. If it isn't, double click the entry to toggle it to false.
- Open an new tab and visit a page with a javascript link on it to test. If all is good close the about:config tab. You're done.
Hopefully the above guide fixes your issue.
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Thank you so much! It worked like a charm.
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I have the same problem and i have only had FIREFOX trouble recently as it seems a race for them to rush new F A S T E S T versions out to claim the FASTEST BROWSER …well i did what you mentioned and the value was false and i GET THOUSANDS of ERROR CONSOLE Errors listed as firefox says "just ignore them, they cause nothing…thats not true… they slow my system down and make my mouse operations spongey…..omg im about to throw this cup o java out help!
tim in houston
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Thanks, deleting/renaming the file works for me as well! Awesome!
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i need help of you all great people.
i am using firefox 3.5.1 and one java applet icon is not appearing. what should i do i have jinit 1.3.1.25 and jaa 6 11th update installed.please help.
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I THINK THE LOGICAL THING IS SOMEONE TELL ME A NEW BROWSER WITHOUT JAVA problems i am not liking firefox so much anymore at all
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WTF? I have been a loyal Firefox fan and understand diff between commercial software and Mozilla. But this does not sound like an obscure bug and I am getting similar messages in February 2010. I have seen similar discussions of same topic from late 2006. Why is this not fixed by Mozillar and/or Sun(Oracle) Java?
I have latest versions of Java and Firefox. I can't find trace of Java Console in the plugin lists or in my Control Panel list of Add or Remove Programs.
When I search I find ten copies (!) of NPOJI610.dll in various Java directories. Apparently when Java updates it simply creates a new directory and a new copy of everything. How strange is that. I wonder why they are the only program install that is too lazy to uninstall or at least write over the old version.
I will uninstall all my old versions of Java and then install again from scratch. I hope that works.
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