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How do I stop my whole laptop freezing when I use Firefox to visit a site that uses Java aplets?

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For the last few weeks, whenever I've used Firefox to visit a trusted site that uses Java aplets, I've got a warning advising me to update Java. But when I check Java, it tells me I already have the most up to date version. However, as of today, whenever I visit the same trusted site my whole laptop freezes - cursor disappears, everything stops. I can't even use Restart - I have to manually disconnect the power. The same happens when I attempt to access Java via the Control Panel (to uninstall) - the moment the cursor hovers over Java, everything freezes and I have to disconnect power. I'm using Vista Home Premium SP2 32-bit. HELP!!

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Additional System Details

Installed Plug-ins

  • Next Generation Java Plug-in 10.45.2 for Mozilla browsers
  • Shockwave Flash 11.9 r900
  • VLC media player Web Plugin 2.0.6
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • 5.1.20513.0
  • Picasa plugin
  • McAfee MSS+ NPAPI Plugin
  • Amazon MP3 Downloader Plugin 1.0.17
  • iTunes Detector Plug-in
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.4
  • Yahoo Application State Plugin version 1.0.0.7
  • NPWLPG
  • CANON iMAGE GATEWAY Album Plugin Utility Module
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers

Application

  • Firefox 24.0
  • User Agent: Mozilla/5.0 (Windows NT 6.0; rv:24.0) Gecko/20100101 Firefox/24.0
  • Support URL: https://support.mozilla.org/1/firefox/24.0/WINNT/en-GB/

Extensions

  • avast! WebRep 8.0.1483 (wrc@avast.com)
  • DVDVideoSoft YouTube MP3 and Video Download 4.2.1.9 ({ACAA314B-EEBA-48e4-AD47-84E31C44796C})
  • Microsoft .NET Framework Assistant 0.0.0 ({20a82645-c095-46ed-80e3-08825760534b})
  • TinEye Reverse Image Search 1.1 (tineye@ideeinc.com)
  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • Ask Toolbar 25.60709 (toolbar_FF3-V7@apn.ask.com) (Inactive)
  • Freemake Video Converter Plugin 1.0.0 (fmconverter@gmail.com) (Inactive)
  • Yahoo! Toolbar 3.1.0.20130818030116 ({635abd67-4fe9-1b23-4f01-e679fa7484c1}) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: Mobile Intel(R) 4 Series Express Chipset Family
  • adapterDescription2:
  • adapterDeviceID: 0x2a42
  • adapterDeviceID2:
  • adapterDrivers: igdumdx32 igd10umd32
  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterVendorID: 0x8086
  • adapterVendorID2:
  • direct2DEnabled: False
  • direct2DEnabledMessage: [u'tryNewerDriver', u'8.1500.1000.2202']
  • directWriteEnabled: False
  • directWriteVersion: 7.0.6002.23097
  • driverDate: 10-7-2008
  • driverDate2:
  • driverVersion: 7.15.10.1576
  • driverVersion2:
  • info: {u'AzureCanvasBackend': u'skia', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'none'}
  • isGPU2Active: False
  • numAcceleratedWindows: 0
  • numAcceleratedWindowsMessage: [u'tryNewerDriver', u'8.1500.1000.1855']
  • numTotalWindows: 1
  • webglRendererMessage: [u'tryNewerDriver', u'8.1500.1000.1855']
  • windowLayerManagerRemote: False
  • windowLayerManagerType: Basic

Modified Preferences

  • accessibility.typeaheadfind.flashBar: 0
  • browser.cache.disk.capacity: 358400
  • browser.cache.disk.smart_size.first_run: False
  • browser.cache.disk.smart_size.use_old_max: False
  • browser.cache.disk.smart_size_cached_value: 358400
  • browser.places.smartBookmarksVersion: 4
  • browser.privatebrowsing.autostart: True
  • browser.startup.homepage: http://www.bbc.co.uk/news/
  • browser.startup.homepage_override.buildID: 20130910160258
  • browser.startup.homepage_override.mstone: 24.0
  • browser.tabs.warnOnClose: False
  • browser.urlbar.maxRichResults: 0
  • dom.mozApps.used: True
  • dom.w3c_touch_events.expose: False
  • extensions.lastAppVersion: 24.0
  • font.internaluseonly.changed: True
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1382561236
  • places.history.expiration.transient_current_max_pages: 92942
  • places.history.expiration.transient_optimal_database_size: 148706754
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • plugin.importedState: True
  • privacy.donottrackheader.enabled: True
  • privacy.sanitize.migrateFx3Prefs: True
  • security.warn_viewing_mixed: False
  • storage.vacuum.last.index: 0
  • storage.vacuum.last.places.sqlite: 1382467089

Misc

  • User JS: Yes
  • Accessibility: No
Wesley Branton
  • Top 25 Contributor
178 solutions 2062 answers

Potentially unsafe versions of the Java plugin are "Click to Play" blocked, meaning that you have to click to activate Java for each site. See the How to allow Java on trusted sites article for more information.

Note: To make sure that your Java plugin is working, you can visit the test pages listed in the article, Use the Java plugin to view interactive content on websites. If an "Activate Java" message box appears, click inside the box to activate the Java plugin.

When you see the "Activate Java" message box, simply click it to load the Java content normally.

Fx24-JavaActivate

If there is no visible area to activate Java content in the page, click the red plugin icon in the address bar. In the message panel that opens, choose "Allow Now" to enable Java content temporarily.

Fx24-JavaAllowNow

The next time you visit the site or any other that uses Java you will see this message again.

If you want to always activate Java for a particular site, you can use the "Allow and Remember" option shown above.

After activating Java, you may also see a "Security Warning" dialog box, asking you to confirm that you want to run Java. This warning comes from Java itself, not from Firefox.

NOTE: After following the above steps, your computer may freeze for around one minute while the Java program is loaded.

Does this solve your problem? Please report back soon.

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Question owner

This doesn't help because my laptop freezes before I can do anything else! I can't even uninstall Java because my laptop freezes every time I try!

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cor-el
  • Top 10 Contributor
  • Moderator
10757 solutions 96831 answers

Note that of today the Java plugin is no longer blocked in Firefox.

Did you already try to uninstall and reinstall Java?

You can find the latest Java version on the Oracle website.

See Java Platform > Java SE 7U45 (JRE Download)

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Wesley Branton
  • Top 25 Contributor
178 solutions 2062 answers

Can you please try running Windows in safe mode with network connections disabled.

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