Firefox and Java JRE update problem fixed
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
AA responds:
Posted: July 6th, 2006 at 5:10 am →
This file was not in my firefox plugin folder at all.
Roy responds:
Posted: October 14th, 2006 at 10:12 am →
I use firefox 1.0.5 and Java JRE 1.5.0_05. After several minutes, the firefox will get restarted and even my pc get restarted. What happens with my firefox anf java?
Can anyone give me any advice?
Thanks.
Roy
Lafinboy responds:
Posted: October 14th, 2006 at 4:28 pm →
Hi Roy - sounds more like you have picked up some malware/virus somwhere rather than a problem with Firefox.
Shah responds:
Posted: November 2nd, 2006 at 8:20 am →
Hi I am facing a similar Java Error. Only this time the error is not displayed and only the applets never run.
I am running XP sp2, Firefox 2.0, not sure about Java & Java Script version but I think its the latest.
can anyone help me on this. i'll be highly obliged.
cheers!
Shah
Deandre responds:
Posted: November 17th, 2006 at 9:51 am →
Help me please…
I just installed Firefox 2.0, and all of a sudden, my username/password isn't being inserted in the signon window (it always was before). I tried the usual suspects–I did not mistakenly tell FF not to remember the password for this site; and I also tried the remember password bookmarklet, but all to no avail–FF will not ask me to remember this password. What do I need to do to get around this?
MMouse responds:
Posted: November 26th, 2006 at 7:17 am →
Hello Shah,
I believe I may have had the same problem.
I was using Firefox and Java fine until recently. Suddenly, I lost the ability to connect to a company intranet using Java. No error messages, the process just did not run with Firefox. Everything was working fine with Internet Explorer, but it would not work with Firefox.
What I realized was that I had recently updated Java with "J2SE runtime Environment 5.0 Update 9"
I went to control panel, add/remove programs, and I removed update 9. (I used the "change" function, then selected remove. I don't know if that is any different that choosing the "uninstall", but I knew I did not want to fully uninstall Java). That fixed the problem for me immediately. I am once again able to connect to the private network with the Java enabled Firefox.
MM
pavel responds:
Posted: November 27th, 2006 at 8:58 am →
Thank you so much for the suggestion. I've struggled a lot with java plugin 1.4.2 to be picked up by the firefox. Firefox was picking up an older plugin 1.4.1.
Copying NPOJI610.dll from java 1.4.2 jre directory into the firefox directory resolved my issue.
I'm running Firefox 2 under windows 98. Works great!
Lafinboy responds:
Posted: November 28th, 2006 at 8:30 pm →
@ MMouse - thanks for the tip. It would seem there are a number of ways to link between Firefox and JRE can be lost.
@ pavel - Glad to have been of some help.
Dominic responds:
Posted: December 13th, 2006 at 4:26 pm →
I had the same problem. I did like suggested. I erased the NPOJI610.dll file and reinstalled the J2SE runtime Environment 5.0 Update 9, and it worked fine. Thanks a lot.
Lafinboy responds:
Posted: December 16th, 2006 at 8:55 am →
Glad to see this fix is still helping. If anybody has any other fixes let me know and we can put together a list of options.
Baby168 responds:
Posted: December 31st, 2006 at 4:04 pm →
I checked on my control panel and I saw 3 j2SE Runtime environment 5.0 Update 3, 10 and 11 can I delete 3 and 10? it occupies large space on my DRIVE will it effect my programs? Thanks.
amywho526 responds:
Posted: January 23rd, 2007 at 3:19 am →
Simply copying NPOJI610.dll from java 1.4.2 jre directory into the firefox directory resolves it.
Thanks
Matt Carter responds:
Posted: January 28th, 2007 at 3:03 pm →
Thanks for the tip. I was having the same problem getting Firefox 2.0.0.1 to run Java 1.5.0_10 applets. Everyone kept saying that I needed to Enable Java in Firefox (which I had done) and that I needed to Enable Mozilla in JavaConsole->Advanced->AppletTagSupport (which kept saying "Unable to change Browser Settings"). Your tip was spot-on. I renamed "NPOJI610.dll" in "C:\Program Files\Mozilla Firefox\plugins", and now Java applets run in Firefox! Thanks!
Ron Kotinsky responds:
Posted: February 3rd, 2007 at 12:26 am →
Excellent tip, it worked for me as well. I renamed the DLL and now my applets run fine. I had installed a piece of software that installed an old JDK 1.3.1_16, apparently that had added this OLD dll back to the directory.
Thanks,
Ron
Per Rinde responds:
Posted: February 24th, 2007 at 6:59 pm →
Brilliant!
I've had this problem for so long and been unable to solve it.
You're the best, man!
/Per
G. Hernandez responds:
Posted: February 28th, 2007 at 6:45 am →
Rigth!
Cool, I don't have to open explorer any more
Brad Horner responds:
Posted: February 28th, 2007 at 8:21 am →
This took me a very long time to fix. This problem isn't very well documented.
Thank you! Somehow bump this to the top of Google.
Lafinboy responds:
Posted: February 28th, 2007 at 1:33 pm →
Glad to see this is still helping!
The quickest way to get this up the list in the search engines is to link back to the article, so get linking y'all.
Lesch responds:
Posted: March 4th, 2007 at 2:34 am →
Unfortunately your tip does not work for me.
XP SP2, JRE 1.5.0_11 (newest), and I cannot start applets in Firefox (2.0.0.2).
Renaming NPOJI610.dll cannot resolve the problem, as it is not in Firefox's plugin directory (only Flash plugin is there).
I tried to copy the whole NP*** dll set from JRE bin directory to the Firefox plugin directory, but this has not effect.
Any help is highly appreciated!
Jamie responds:
Posted: March 6th, 2007 at 4:31 am →
Sadly, your tip does not work for me either. I had the same problem running Java apps in my Firefox (2.0.0.2) in WinXP. Initially, I tried to verify my installation on the Java website but I got a runtime error "R6025 - pure virtual function call" before FF shut down on me. Then I realised that the file NPOJI610.dll was not in the plugin folder, so I copied it into the FF plugin folder. Even so, whenever I tried to verify my installation again, FF simply shut down suddenly and when I restart FF, FF will ask me whether I want to restore my previous session.
I'm so frusturated with this since this is only one of the few problem FF2 has given me. Please help if you can! I'll be grateful…
One2Know responds:
Posted: March 6th, 2007 at 1:55 pm →
I'm running Vista and JRE !.6.0 and same problem as Lesch above, lugins don't appear for Java in the FF plug-ins directory and copying and pasting don't solve the issue either. I been troubleshooting this for hours and have checked and rechecked settings and Googled the issue to death.
We need some help!!!
James responds:
Posted: March 13th, 2007 at 10:13 am →
There's this over at mozillazine - http://forums.mozillazine.org/viewtopic.php?p=2780297
I've found that going to a Java site, having the installation fail (since I've already got the plugin installed) and then refreshing the page with Java on it works great.
Running as admin, Firefox 2.0.0.2, XP SP 2, 5.0 Update 11. IE 7 runs Java fine.
Anakha responds:
Posted: March 15th, 2007 at 12:19 pm →
Firefox 1.5.0.10. Java Plug-in 1.5.0_0.6 Win XP SP2. Worked like a champ!
Brian responds:
Posted: March 19th, 2007 at 2:05 pm →
Config: Firefox 2.0.0.2 and WinXP SP2
I found npoji600.dll in c:\program files\mozilla firefox\plugins and renamed it as you say so. It works then and thanks.
Lafinboy responds:
Posted: March 25th, 2007 at 9:29 pm →
To all that this write up has helped, thanks for your feedback.
To all that haven't been helped, I can only offer my sympathies. I know the pain you are going through. If you have since found a solution to your problems let me know and I will write a follow up to this post with a selection of alternative possible fixes.
shadow responds:
Posted: April 12th, 2007 at 10:47 pm →
for the most people that has npoji600.dll in the firefox pluggins folder it work, but somebody knows how to solve it in case that this dll isn't there?
In linux operating system the trick is really fast and point to add functionality to the firefox, why in windows the solution is to eliminate the link of firefox with the pluggins? if this dll are old and it isn't compatible, that's fine, but should be another dll that has the right functionality in order to firefox can run applets?
Emma responds:
Posted: April 13th, 2007 at 6:16 pm →
I was having the same frustrating problem with firefox and java. Having just bought a brand new laptop running vista and the latest versions of everything this was very annoying. I tried the first tip on this page but I also found that the dll was not in the firefox plugins folder so tried the other tip someone left about just copying the dll from the java directory into the firefox directory now it works a charm. Thanks!
d-log » Blog Archive » Firefox and Java JRE update problem fixed at thought-after responds:
Posted: April 27th, 2007 at 12:28 am →
[...] Firefox and Java JRE update problem fixed at thought-after [...]
JayZed responds:
Posted: May 13th, 2007 at 5:21 pm →
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! THANKS SO MUCH for sharing your tip.
jb responds:
Posted: May 21st, 2007 at 2:57 am →
Thanks!!!
BouncerFL responds:
Posted: May 23rd, 2007 at 2:20 am →
Amazing tip…thank you! I was experiencing the exact same issues under WinXP, Firefox2 and the latest JRE. I renamed the dll and voia la!
Awesome…thank you thank you thank you!
~Ray
Ed responds:
Posted: May 31st, 2007 at 5:11 pm →
Thank sooo much! I've tried to fix this problem for three hours before getting to read this. ..
cb responds:
Posted: June 3rd, 2007 at 2:22 am →
got same problem. i use Vista, Firefox 2.0.0.4, Java runtime 6 update 1. After copying the dll from Java bin folder to Firefox plugin folder apparently it still did not work for me.
But then after I changed the firefox.exe file to be run as administrator (go to properties - right click on the file), java works… just in case you encounter same problem as me, this may be useful.
tks
cb
edmo responds:
Posted: June 6th, 2007 at 4:38 am →
Trying to solve for hours. The post by JayZed avobe was the answer for me.
running FF 2.0.0.4 and Java 1.6.0 with Windows XP
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!
boras responds:
Posted: June 30th, 2007 at 6:40 am →
Installed some spell check plug ins and after that Java wasn't working anymore.
I do have the .dll 's in all folders.
I have been reading somewhere that after a wrong made plugin that Firefox is not recognizing the extensions anymore.
juegos responds:
Posted: July 31st, 2007 at 7:55 am →
Hi I am facing a similar Java Error. Only this time the error is not displayed and only the applets never run.
I am running XP sp2, Firefox 2.0, not sure about Java & Java Script version but I think its the latest.
Sexo responds:
Posted: August 15th, 2007 at 3:27 am →
Excellent tip, it worked for me as well. I renamed the DLL and now my applets run fine.
Christopher Walken responds:
Posted: September 7th, 2007 at 3:16 am →
>But then after I changed the firefox.exe file to be run as administrator (go to >properties - right click on the file), java works… just in case you encounter same >problem as me, this may be useful.
That worked for me, which is strange because I was already logged in as an administrator.
When responds:
Posted: September 11th, 2007 at 7:36 pm →
According to "help" -> "Check for updates…" I have the newest Firefox installed, which "Help" -> "About Mozilla Firefox" tells me is 2.0.0.6. Today the problem is still there (after so long time) on a Windows XP installation.
I think the main problem is, that the file npoji610.dll can be found to places and not one place, which probably should be in the bin directory of the latest installed java runtime system. This would require some lookup functionality from Firefox - I would very much appreciate, if the team behind Firefox could do this.
The "gold solution" would be, if it could be possible from: "Settings" -> "Control Panel" -> "Java" -> "Java tab" -> "View" button under "Java Applet Runtime Settings" to have a list of installed Java Runtime System from which one can choose (today not possible) the Runtime System they want (note that is possible under the JNLP Runtime Settings) - The customers of my company may have more than one Runtime System installed, but is typically not running the latest version of the Runtime System, which is what they are forced to use, so that would be a nice feature to have.
Jocuri responds:
Posted: October 24th, 2007 at 6:47 am →
It is working, thank you!
I can't believe there the problem was because of dll.
Thank you again,
Jocuri
Shelly responds:
Posted: November 5th, 2007 at 1:30 pm →
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
Xenos responds:
Posted: November 7th, 2007 at 1:10 am →
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?
Randon responds:
Posted: November 9th, 2007 at 7:02 pm →
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!
rob responds:
Posted: November 29th, 2007 at 10:24 am →
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)
Ali responds:
Posted: December 7th, 2007 at 6:24 pm →
i tried to uninstall firefox, update, reinstall java runtime,…etc.
now just rename the dll file, and everything works fine
Great job!
Bem responds:
Posted: December 11th, 2007 at 4:47 am →
The renaming worked for me. Thanks! i've been pondering for this for a long time now.
sonya responds:
Posted: December 19th, 2007 at 12:14 pm →
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.
tristafiona responds:
Posted: January 26th, 2008 at 4:30 am →
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!
alishiya responds:
Posted: January 28th, 2008 at 5:57 pm →
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
gbrizll responds:
Posted: February 7th, 2008 at 10:35 am →
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.
Jim responds:
Posted: June 29th, 2008 at 12:48 pm →
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
lazy programmer responds:
Posted: July 20th, 2008 at 3:47 am →
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.