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JAVA "Missing plug-in" message in FireFox missing
On Windows 7

 12:57 am on Feb 6, 2011 (gmt 0)

I've spent a few hours googling around trying to work this one out and I'm totally stuck.

On Windows 7, fresh copy of FireFox installed, I can go to the JavaVersion website and I get, as you'd expect, the "Missing plug-in" message at the top of the main FireFox window.

On my own page, which contains almost nothing other than my applet reference as:-

<applet id="myapplet" code="myapplet.class" archive="win/myapplet.jar" width="0" height="0" mayscript="true" >
<param name = 'command' value='12345' />

When I load my own page, containing this, I do not get the "Install missing plugin" message in the browser. The page loads, and just sits there and does nothing.

Has anyone else experienced this ?

I've been through the code for the JavaVersion site and the only substantial difference that I can see is that my applet is signed and uses an archive. Other than that I can't see it, but I know I must be missing something....




 3:28 pm on Feb 8, 2011 (gmt 0)

Is the Java Console present when you view the Extensions tab in the Tools > Add-ons menu?


 9:39 pm on Feb 8, 2011 (gmt 0)

Hey Coop!

No, it isn't present. I don't think I would expect it to be in a brand new Win 7 install (which I think doesn't ship with JAVA) ?


 2:58 pm on Feb 9, 2011 (gmt 0)

Sounds like you need to install Java. Type
java -version

from the command line and see if you have Java installed.


 3:48 pm on Feb 9, 2011 (gmt 0)

I think we're at cross-purposes.

I definitely don't have JAVA installed and that's deliberate - I'm trying to get the right user-experience for when someone lands on this webpage, which has a JAVA applet in it, if they don't have JAVA installed.

What I would expect to see is the browser showing the standard "missing plug-in required, click here" Message at the top of their browser.

With all other sites I go to with JAVA applets in them, I see that message.

With my page (which has the Applet code above, and I've also tried the Object tag for IE), they don't.....


 4:18 pm on Feb 9, 2011 (gmt 0)

My bad, you're correct. Now I do understand what you are attempting. Are the other sites running their "missing plug-in" message in a <noscript> element?


 4:24 pm on Feb 9, 2011 (gmt 0)

I'm going to throw out some suggestions... can you get to the jar file? Is it in the correct location relative to the page? If you point the browser directly at the jar file itself, what happens? Are there any file permissions that need to be set on the jar file?

Not sure if that will help any, but it's where I'd start looking.


 6:44 pm on Feb 9, 2011 (gmt 0)

Thanks guys - some good pointers in there I'll go and check - will report back with findings :)

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