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Java plugin does not load on Firefox

Posted

I work on a machine without administrator access. Firefox fails to load Java plugin even thought it is installed. Been digging around internet and found this and this. As I checked users on this machine really has only Read access to HKLM\Software\mozilla.org. Is this the root problem why plugin doesnt load? It was mentioned that this should have been fixed in newer versions on both Java and FF.

I'm using Firefox 11.0, Java 6 Update 13, Windows 7 Enterprise.

Modified by gmxs

Chosen solution

ok, i read about this problem on the mozillazine kb now...

could you try the following: go to start run & open %appdata%\Mozilla\, in there create a folder named plugins (in case it doesn't exist yet). then you'd have to go into the java program directory and the bin subfolder (probably C:\Program Files\Java\j2re<version>\bin\) & copy all .dll-files that start with np*.dll and paste them into the plugins folder, that you have created before. this has to be repeated for every user on the machine.

in case firefox is detecting the plugin afterwards, i would recommend you keep the plugin disabled and only enable it on demand (or use an extension like noscript to create a whitelist for trusted sites that can use the plugin). i've seen many infections myself that exploited the vulnerabilities in old java versions, also on accounts with limited user rights...

Read this answer in context 1

Additional System Details

Installed Plug-ins

Adobe Acrobat Microsoft Lync Microsoft Office 2010 Flash Silverlight

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20100101 Firefox/11.0

More Information

Application Basics
Name
Firefox
Version
11.0
User Agent
Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20100101 Firefox/11.0
Profile Directory
Open Containing Folder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Crash Reports
about:crashes
Memory Use
about:memory
Extensions
Name
Version
Enabled
ID
Adblock Plus
2.0.3
true
{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
DejaClick by AlertSite
2.4.2.0
true
{af103f06-4278-42c5-9cc0-98174bbbea1e}
FireGestures
1.6.16
true
firegestures@xuldev.org
JavaScript Debugger
0.9.89
true
{f13b157f-b174-47e7-a34d-4815ddfdfeb8}
Tile Tabs
6.0
true
tiletabs@DW-dev
IE NetRenderer
0.9.7
false
ienetrenderer-nico@nc
Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar
0
browser.places.smartBookmarksVersion
2
browser.startup.homepage_override.buildID
20120312181643
browser.startup.homepage_override.mstone
rv:11.0
browser.tabs.warnOnClose
false
dom.ipc.plugins.java.enabled
true
extensions.lastAppVersion
11.0
gfx.blacklist.direct2d
3
gfx.blacklist.layers.direct3d10
3
gfx.blacklist.layers.direct3d10-1
3
gfx.blacklist.layers.direct3d9
3
gfx.blacklist.layers.opengl
3
gfx.blacklist.suggested-driver-version
8.15.10.2202
gfx.blacklist.webgl.angle
3
gfx.blacklist.webgl.msaa
3
gfx.blacklist.webgl.opengl
3
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1339153590
places.history.expiration.transient_current_max_pages
52733
privacy.sanitize.migrateFx3Prefs
true
security.OCSP.disable_button.managecrl
false
security.disable_button.openCertManager
false
security.disable_button.openDeviceManager
false
security.ssl.renego_unrestricted_hosts
www.wupos.westernunion.com
security.warn_viewing_mixed
false
Graphics
Adapter Description
Intel(R) 4 Series Internal Chipset
Vendor ID
8086
Device ID
2e12
Adapter RAM
Unknown
Adapter Drivers
igdumdx32 igd10umd32
Driver Version
8.15.10.2086
Driver Date
2-20-2010
Direct2D Enabled
Blocked for your graphics driver version. Try updating your graphics driver to version 8.15.10.2202 or newer.
DirectWrite Enabled
false (6.1.7601.17789)
ClearType Parameters
ClearType parameters not found
WebGL Renderer
Blocked for your graphics driver version. Try updating your graphics driver to version 8.15.10.2202 or newer.
GPU Accelerated Windows
0. Blocked for your graphics driver version. Try updating your graphics driver to version 8.15.10.2202 or newer.

philipp
  • Top 10 Contributor
  • Moderator
2051 solutions 8919 answers

hello, i think the plugin isn't active since firefox has blocklisted older versions of the java plugin - it contains various security vulnerabilites which are commonly exploited out there on the web & used for "drive-by-infections" (it's enough to just visit a malicious page, no further interaction is needed).

do you have the possibility to update to the current version of java on this computer?

https://addons.mozilla.org/firefox/blocked/p80

Question owner

It's not that plugin isn't active. Plugin doesn't even show on about:plugins as inactive. And I do not see that error you've posted. I think FF isn't aware that there is Java installed nor it's version.

And sadly updating/reinstalling Java or Firefox is not an option for me.

philipp
  • Top 10 Contributor
  • Moderator
2051 solutions 8919 answers

Chosen Solution

ok, i read about this problem on the mozillazine kb now...

could you try the following: go to start run & open %appdata%\Mozilla\, in there create a folder named plugins (in case it doesn't exist yet). then you'd have to go into the java program directory and the bin subfolder (probably C:\Program Files\Java\j2re<version>\bin\) & copy all .dll-files that start with np*.dll and paste them into the plugins folder, that you have created before. this has to be repeated for every user on the machine.

in case firefox is detecting the plugin afterwards, i would recommend you keep the plugin disabled and only enable it on demand (or use an extension like noscript to create a whitelist for trusted sites that can use the plugin). i've seen many infections myself that exploited the vulnerabilities in old java versions, also on accounts with limited user rights...

Question owner

It worked. However now FF blocked this like you said it would. I disabled extensions.blocklist.enabled just to test if it works. Then plugin shows as enabled but it's still not working. No idea why.

philipp
  • Top 10 Contributor
  • Moderator
2051 solutions 8919 answers

Helpful Reply

what result do you get when you visit this java test site? http://www.java.com/en/download/testjava.jsp

Question owner

See the screen.

philipp
  • Top 10 Contributor
  • Moderator
2051 solutions 8919 answers

well this actually looks good since it is stating "old versions of java has been detected on your system" - when i view the page with java disabled only the bottom part is showing up. obviously oracle will warn you too that the plugin is outdated & is trying to get you updating...

Question owner

It would solve all the problems but I can't do it. And admin isn't too keen on updating Java on single machine. This looks like a dead end.

philipp
  • Top 10 Contributor
  • Moderator
2051 solutions 8919 answers

does this site work? http://www.cis.upenn.edu/~matuszek/Ge.../JavaTests.html

i understand that the admin won't like changing the configuration on a single machine, but please urge him to upgrade the whole environment. here is oracles own advisory: http://www.oracle.com/technetwork/topics/security/javacpufeb2012-366318.html

Question owner

All tests failed. Adding screens.

I know benefit of the update however this is not that easy.

philipp
  • Top 10 Contributor
  • Moderator
2051 solutions 8919 answers

the mozillazine kb has a section named "Missing plugin alert even though Java is installed" and it also refers to the registry entry that you already hat suspected in your question... unfortunately it seems that it is not possible to work around the issue without admin rights.

Question owner

I guess so. Anyways, thank you for the help!