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Java does not cooperate with Firefox


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#1 ixcuincle

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Posted 10 October 2010 - 11:45 AM

On Windows 7 I have installed Firefox, and Java is highly uncooperative.

Every time I access a Java application with Firefox, all I get is a black screen. The applets don't even load.

I access these same sites using Opera and everything is fine. But with Firefox, all I get is a black screen.

I could use Opera for everything Java but that's inconvenient and I would like to use Java on Firefox.

What could be responsible for this? I do have Ad-Block Plus installed as an add-on but I doubt it would be the reason behind blocking all Java applications with a black screen. I have also tried clearing cookies, but this does nothing and all Java applications continue to be blacked out.

Any help would be appreciated, thanks.

Edited by ixcuincle, 10 October 2010 - 11:46 AM.


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#2 computerxpds

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Posted 10 October 2010 - 11:50 AM

When you attempt to run a java applet does the java loading screen appear? Also when you attempt to run a java app does the java cup appear in the task bar next to the clock?
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#3 Broni

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Posted 10 October 2010 - 12:43 PM

Do you have the newest Java installed?

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#4 keyboardNinja

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Posted 10 October 2010 - 07:28 PM

I would recommend closing all open programs (including browsers), uninstalling Java using Revo Uninstaller, then reinstalling using the offline installer.
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#5 ixcuincle

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Posted 10 October 2010 - 07:43 PM

When you attempt to run a java applet does the java loading screen appear? Also when you attempt to run a java app does the java cup appear in the task bar next to the clock?


Yes. I see a black screen, then the Java loading screen, then the black screen again.

Do you have the newest Java installed?


Yes. I uninstalled Java, downloaded the most recent version from the Java website, and these errors still continue.

--------------

Okay, I closed all open programs, used Revo Uninstaller advanced to remove all traces of Java and registry keys related to Java. Also reinstalled. The problem persists.

Anything that is Java-related gets the following

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Edited by ixcuincle, 10 October 2010 - 08:52 PM.


#6 Broni

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Posted 10 October 2010 - 09:02 PM

Close Firefox. Go Start>All Programs>Mozilla Firefox, click on Mozilla Firefox (safe mode). Same thing?

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#7 ixcuincle

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Posted 10 October 2010 - 09:07 PM

Close Firefox. Go Start>All Programs>Mozilla Firefox, click on Mozilla Firefox (safe mode). Same thing?


Yup. Still black screens for Java applications.

I checked all the options too, when the safe mode box came up. Firefox was basically running without addons at all and still got a black screen when a Java chat was loaded.

Edited by ixcuincle, 10 October 2010 - 09:08 PM.


#8 Broni

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Posted 10 October 2010 - 09:13 PM

Create FF new profile: http://webcache.googleusercontent.com/sear...=clnk&gl=us

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#9 ixcuincle

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Posted 10 October 2010 - 09:45 PM

Create FF new profile: http://webcache.googleusercontent.com/sear...=clnk&gl=us


Still the same error even with a new profile. All the add-ons are gone, all the ad-blocking add-ons...but Java still doesn't load.

I tried refreshing the page after being stuck at a black screen. I got the following error. It might provide some clues as to what is going wrong.

Java Plug-in 1.6.0_21
Using JRE version 1.6.0_21-b07 Java HotSpot™ Client VM
User home directory = C:\Users\Spencer
----------------------------------------------------
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
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 <n>
----------------------------------------------------


load: class Speed not found.
java.lang.ClassNotFoundException: Speed
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.<init>(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 9 more
Exception: java.lang.ClassNotFoundException: Speed

Edited by ixcuincle, 10 October 2010 - 09:56 PM.


#10 Broni

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Posted 10 October 2010 - 09:58 PM

Are you having same problem with IE?

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#11 ThunderZ

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Posted 10 October 2010 - 10:07 PM

Just want to ask if the plug-in even shows as being installed. Tools > Add-ons > Plugins

#12 ixcuincle

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Posted 10 October 2010 - 10:15 PM

Are you having same problem with IE?


When I did a DSLREports Speed Test on IE it got the error, so I think the Java error I posted earlier is limited to that site only.

When I tried a Java chat with IE, it loaded successfully (although it did take some time)

Just want to ask if the plug-in even shows as being installed. Tools > Add-ons > Plugins


It shows itself as installed (Java Deployment Toolkit 6.0.210.7 / Java Platform SE 6 U21)

Edited by ixcuincle, 10 October 2010 - 10:17 PM.


#13 ThunderZ

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Posted 10 October 2010 - 10:20 PM

It shows itself as installed (Java Console)


One last question then I`ll give up. :thumbsup: This is Win 7 32bit?

#14 ixcuincle

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Posted 10 October 2010 - 10:30 PM

It shows itself as installed (Java Console)


One last question then I`ll give up. :thumbsup: This is Win 7 32bit?


Yes it is.

It's completely weird, Java works on every other browser but Firefox.

#15 Broni

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Posted 10 October 2010 - 11:00 PM

I think the Java error I posted earlier is limited to that site only

In Firefox too? Just one site?

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