Problem with Java Control Panel and Firefox

[Rhino]

I've been having trouble getting my applets to work in Firefox. The other
day, I posted about it and got the advice that I needed to modify certain
settings in the Java Control Panel. Today, I finally had a minute to look
into that. I launched the Java Control Panel from the Windows Control Panel,
went to the Advanced page, expanded the "<APPLET> tag support" branch of the
tree and found that Internet Explorer was checked but Mozilla dnd Netscape
were not. I checked "Mozilla and Netscape" and clicked "Apply" but got this
warning message: "Unable to change Browser Settings. Please check that
Mozilla or Netscape is properly installed on the system and/or that you have
sufficient permissions to change system settings."

When I click on OK to dismiss the message, exit the Java Control Panel and
launch it again, the Mozilla box is still unchecked.

Does anyone have any idea why I would get this message and what I can do
about it?

I installed Firefox and it seems to be working fine except with respect to
its handling of Java applets. I'm running Windows XP Pro with SP2 and the id
I'm using is in the Administrator group. I don't see that either of the
things the message mentions is very likely to be true.

I just want my applet to run in Firefox as well as it does in IE and Opera
but Firefox isn't cooperating. By the way, I'm running Firefox 1.5.0.1 and
have the Java 1.5.0_06 JDK/JRE installed.

 

[Roedy Green]

Please check that
Mozilla or Netscape is properly installed on the system and/or that you have
sufficient permissions to change system settings."

I have been having trouble with that too. I check them, then come back
and they are unchecked. However both browsers are working fine anyway.

Another goofy thing in the Java control panel is you can't select
which JRE to use for Applets.

 

[Rhino]

I have been having trouble with that too. I check them, then come back
and they are unchecked. However both browsers are working fine anyway.

I wish I could say that my copy of Firefox was working despite the Java
Control Panel. But it isn't. Whenever I go the page with my applet on it, it
shows me the jigsaw puzzle piece; when I click on it, it fails to find any
suitable plugins; when I take the manual install option for the plugins, the
web page still doesn't work afterwards.

I can't believe that everyone is having these problems with Firefox or
surely the Firefox people would have done something about it. I guess I'm
going to have to hunt for a Firefox support newsgroup to see if they can
help me figure this out.

Another goofy thing in the Java control panel is you can't select
which JRE to use for Applets.

That's a pain too. But not Firefox's fault.

 

[David Segall]

I just want my applet to run in Firefox as well as it does in IE and Opera
but Firefox isn't cooperating. By the way, I'm running Firefox 1.5.0.1 and
have the Java 1.5.0_06 JDK/JRE installed.

May I suggest the standard "engineering" technique of turning it off
and turning it on again? Uninstall the JDK and JRE then reinstall
them. Hopefully the install will find Firefox and install itself
properly.

 

[Tail_Spin]

Not sure if this will help, but if you don't already have the 'Web
Developer' extension
you might want to give that a try.

https://addons.mozilla.org/extensions/moreinfo.php?application=firefox&categ
ory=Developer%20Tools&id=60


Java console is under: Tools -> Web Developer -> Miscellanious -> Open Java
Console
or: Ctrl + Shift + O

Also here is a link the mozilla plugin doc page:
http://plugindoc.mozdev.org/faqs/java.html

I know I had a problem with it as well a while back, but hacked away until I
finally got it to work.
Unforetunately, I didn' t keep track of what it was that finally fixed it,
(sorry about that).

 

[Roedy Green]

That's a pain too. But not Firefox's fault.

I would like it if in each browser I could override the default JRE
choice setting. That would let me test several java versions by
setting up each browser with a different one.

 

[Roedy Green]

May I suggest the standard "engineering" technique of turning it off
and turning it on again? Uninstall the JDK and JRE then reinstall
them. Hopefully the install will find Firefox and install itself
properly.

I had to do that with IE which had got itself in a snit and would not
see any Java and even hid the box to turn it on. Everyone got
confused when I let an ancient JAWS app install java 1.3. You should
never install them out of chronological order.

 

[Roedy Green]

I would like it if in each browser I could override the default JRE
choice setting. That would let me test several java versions by
setting up each browser with a different one.

Perhaps even nicer would be if Browser registered their presence with
Java or left something around for a newly installed Java control
panel to find, perhaps some registry entries or files.

Then you could sit in your Java control panel and turn java off and
on, select JVMs in ALL your browsers independently from a central
place.

Further Sun would offer an API so the browser could let the user
change his settings from within the browser, for just that browser.

It is wrong for Sun to support just some special privileged set of
browsers. They should publish an API and let ANY browser implement it.