618519 - I get "Your browser does not support Java, so nothing is displayed" after allowing javascript

Status: RESOLVED INCOMPLETE

(Plugins Graveyard :: Java (Oracle), defect)

Description

[Gabriela [:gaby2300]]

User-Agent:       Mozilla/5.0 (Windows NT 6.1; rv:2.0b8pre) Gecko/20101210 Firefox/4.0b8pre
Build Identifier: Mozilla/5.0 (Windows NT 6.1; rv:2.0b8pre) Gecko/20101210 Firefox/4.0b8pre

In the technical tools Litmus Tests for Firefox 4. 0 tge 8th test: "Confirm Javascript to Java communication via Liveconnect", I get the message: "Your browser does not support Java, so nothing is displayed" even after allowing javascript in  NoScript and reloading the site several times.

Reproducible: Always

Steps to Reproduce:
1. Visit http://developer.apple.com/internet/safari/samples/ColorBlockApplet.html
2. Allow javascript in NoScript.

Actual Results:  
I get the message: "Your browser does not support Java, so nothing is displayed"

Expected Results:  
the Java Applet should show.

Comment 1

[Matthias Versen [:Matti]]

Does it work if you run Firefox in the Firefox safemode (without addons) ?

Comment 2

[Rob Campbell [:rc] (:robcee)]

Do we even support Liveconnect anymore? Regardless, this is in the wrong component.

Comment 3

[Steven Michaud [:smichaud] (Retired)]

The JEP is only available on OS X, and only works with FF 3.6.X and before.

> Do we even support Liveconnect anymore?

We certainly do, on all platforms.  You're thinking of browser-side support for LiveConnect, which was dropped as of FF 3.6 for Windows and Linux, and on all platforms as of FF 4.

But in any case I wonder if the reporter is confusing JavaScript with Java (no, they aren't the same thing).

Comment 4

[Steven Michaud [:smichaud] (Retired)]

> But in any case I wonder if the reporter is confusing JavaScript
> with Java (no, they aren't the same thing).

Oops, now I see that
http://developer.apple.com/internet/safari/samples/ColorBlockApplet.html
does use both Java and JavaScript, and also uses JavaScript-to-Java
LiveConnect.

Comment 5

[Steven Michaud [:smichaud] (Retired)]

I just tried
http://developer.apple.com/internet/safari/samples/ColorBlockApplet.html
in today's Minefield nightly on Windows	XP.  I had no problems.

Do try Safe Mode.  But if I remember right that disables both
extensions and plugins (and Java is of course a plugin).  So to get
things working you'll probably need to disable all your extensions.
Then re-enable them one-by-one to see which one is causing trouble.

Comment 6

[Matthias Versen [:Matti]]

The safemode disables all addons, jit (TM/JM) and graphic hardware acceleration but not plugins.

Comment 7

[Gabriela [:gaby2300]]

(In reply to comment #5)
> I just tried
> http://developer.apple.com/internet/safari/samples/ColorBlockApplet.html
> in today's Minefield nightly on Windows    XP.  I had no problems.
> 
> Do try Safe Mode.  But if I remember right that disables both
> extensions and plugins (and Java is of course a plugin).  So to get
> things working you'll probably need to disable all your extensions.
> Then re-enable them one-by-one to see which one is causing trouble.

I tried it in today's Minefield on Windows 7. I had the same issue. 
I'll try disabling my extensions and plugins and then re-enabling them one-by-one as soon as I can.

Comment 8

[Benjamin Smedberg]

Closing old bugs in the Plugins component. We aren't going to track issues in 3rd-party plugins in the Mozilla bug tracker. In addition, support for NPAPI plugins will be removed at the end of this year; for more details see the post at https://blog.mozilla.org/futurereleases/2015/10/08/npapi-plugins-in-firefox/

If there is a serious bug in Firefox, it needs to be filed in the "Core" product, "Plug-Ins" component.