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Windows 8 - Firefox 17.x and 18 don't play videos from CNET website


It played CNET videos before very good in last few months. And now Firefox 17.x don't play any videos from CNET. I updated FF to 18 version and it has same problem.

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • Google Update
  • Adobe PDF Plug-In For Firefox and Netscape 11.0.0
  • The plugin allows you to have a better experience with Microsoft SharePoint
  • Yahoo Application State Plugin version
  • 5.1.10411.0


  • User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0

More Information

"application": {
"name": "Firefox",
"version": "18.0",
"userAgent": "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0",
"supportURL": "http://support.mozilla.org/1/firefox/18.0/WINNT/en-US/"
"modifiedPreferences": {
"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.startup.homepage": "about:home",
"browser.startup.homepage_override.buildID": "20130104151925",
"browser.startup.homepage_override.mstone": "18.0",
"browser.tabs.warnOnClose": false,
"browser.tabs.warnOnOpen": false,
"dom.mozApps.used": true,
"extensions.lastAppVersion": "18.0",
"network.cookie.prefsMigrated": true,
"places.history.expiration.transient_current_max_pages": 103947,
"places.database.lastMaintenance": 1357643035,
"privacy.clearOnShutdown.formdata": false,
"privacy.sanitize.sanitizeOnShutdown": true,
"privacy.clearOnShutdown.cookies": false,
"privacy.donottrackheader.enabled": true,
"privacy.clearOnShutdown.history": false,
"privacy.clearOnShutdown.downloads": false,
"privacy.sanitize.migrateFx3Prefs": true,
"security.warn_viewing_mixed": false
"graphics": {
"numTotalWindows": 1,
"numAcceleratedWindows": 1,
"windowLayerManagerType": "Direct3D 10",
"adapterDescription": "Intel(R) G41 Express Chipset (Microsoft Corporation - WDDM 1.1)",
"adapterVendorID": "0x8086",
"adapterDeviceID": "0x2e32",
"adapterRAM": "Unknown",
"adapterDrivers": "igdumd64 igd10umd64 igdumd32 igd10umd32",
"driverVersion": "",
"driverDate": "3-24-2012",
"adapterDescription2": "",
"adapterVendorID2": "",
"adapterDeviceID2": "",
"adapterRAM2": "",
"adapterDrivers2": "",
"driverVersion2": "",
"driverDate2": "",
"isGPU2Active": false,
"direct2DEnabled": true,
"directWriteEnabled": true,
"directWriteVersion": "6.2.9200.16433",
"webglRenderer": "Google Inc. -- ANGLE (Intel(R) G41 Express Chipset (Microsoft Corporation - WDDM 1.1))",
"info": {
"AzureCanvasBackend": "direct2d",
"AzureFallbackCanvasBackend": "cairo",
"AzureContentBackend": "direct2d"
"javaScript": {
"incrementalGCEnabled": true
"accessibility": {
"isActive": false,
"forceDisabled": 0
"libraryVersions": {
"NSPR": {
"minVersion": "4.9.4",
"version": "4.9.4"
"NSS": {
"minVersion": " Basic ECC",
"version": " Basic ECC"
"minVersion": "",
"version": ""
"minVersion": " Basic ECC",
"version": " Basic ECC"
"minVersion": " Basic ECC",
"version": " Basic ECC"
"extensions": []

  • Top 25 Contributor
  • Moderator
251 solutions 3015 answers

Hello tanphat99ct,

Thank you for posting here on the Mozilla Support Forums! We appreciate you as a user of Firefox!

Please make sure your plug-ins are up to date by following the instructions below;

Please check if all your plugins are up-to-date. To do this, go to the Mozilla Plugin Check site.

Once you're there, the site will check if all your plugins have the latest versions. If you see plugins in the list that have a yellow Update button or a red Update now button, please update these immediately.

To do so, please click each red or yellow button. Then you should see a site that allows you to download the latest version. Double-click the downloaded file to start the installation and follow the steps mentioned in the installation procedure.