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Hi (I don't know english good, sorry), I have a strange trouble with html5. It's started yesterday evening, after update 10.04.2015, I'm using FF Dev. Edition (aurora). Videos in html5 with H.264/mp4 showing as black retangle (example in attached). I trying own page with html5. It's not working too, but "Your browser does not support H.264/MP4." didn't written, just black rectangle. I'm trying ogg, and it's work. Before the update all worked fine, I have watched video in html5 only. Whats I doing wrong or it's bug from the last update? In FireFox (not aurora, not beta), I can watching html5 fine, all my codecs installed on PC. Thanks.

UPD1 : Patch 39.0a2 (2015-04-11), problem is actual yet.

Hi (I don't know english good, sorry), I have a strange trouble with html5. It's started yesterday evening, after update 10.04.2015, I'm using FF Dev. Edition (aurora). Videos in html5 with H.264/mp4 showing as black retangle (example in attached). I trying own page with html5. It's not working too, but "Your browser does not support H.264/MP4." didn't written, just black rectangle. I'm trying ogg, and it's work. Before the update all worked fine, I have watched video in html5 only. Whats I doing wrong or it's bug from the last update? In FireFox (not aurora, not beta), I can watching html5 fine, all my codecs installed on PC. Thanks. UPD1 : Patch 39.0a2 (2015-04-11), problem is actual yet.
Attached screenshots

Modified by JAkutenshi

Chosen solution

Hm, ok, I think i found silution: Advanced -> general -> "Use hardware acceleration when available" to off. I'll try update video drivers... But it helped me : https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems Thanks!

Second answer is also actual:"Also, how can I totally remove FF from my PC? If I just reinstall, my old settings is still here."

Read this answer in context 1

Additional System Details

Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape 11.0.10
  • Google Update
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Next Generation Java Plug-in 11.31.2 for Mozilla browsers
  • The plugin allows you to have a better experience with Microsoft SharePoint
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • NVIDIA 3D Vision plugin for Mozilla browsers
  • Raidcall plugin
  • Shockwave Flash 17.0 r0
  • 5.1.10411.0
  • Unity Player 4.6.0f2
  • Plugin for Wacom tablets.

Application

  • Firefox 39.0a2
  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0
  • Support URL: https://support.mozilla.org/1/firefox/39.0a2/WINNT/ru/

Extensions

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  • Adblock Plus 2.6.9 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})
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  • SaveFrom.net помощник 4.85 (helper@savefrom.net)
  • Super Start 7.3.3 (superstart@enjoyfreeware.org)
  • Valence 0.3.0 (fxdevtools-adapters@mozilla.org)
  • Ghostery 5.4.3 (firefox@ghostery.com) (Inactive)
  • Tile Tabs 12.9 (tiletabs@DW-dev) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

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  • adapterDescription2: NVIDIA GeForce GT 525M
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  • directWriteVersion: 6.2.9200.16492
  • driverDate: 3-26-2011
  • driverDate2: 9-13-2014
  • driverVersion: 8.15.10.2345
  • driverVersion2: 9.18.13.4411
  • info: {u'AzureCanvasBackend': u'direct2d 1.1', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d 1.1', u'AzureSkiaAccelerated': 0}
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  • windowLayerManagerType: Direct3D 11

Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
FredMcD
  • Top 10 Contributor
4248 solutions 59432 answers

If you have problems with current Shockwave Flash plugin versions then check this:

  • see if there are updates for your graphics drive drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

  • disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also:

If you have problems with current Shockwave Flash plugin versions then check this: * see if there are updates for your graphics drive drivers '''https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration''' * disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later) '''https://forums.adobe.com/message/4468493#TemporaryWorkaround''' * disable hardware acceleration in the Flash plugin '''https://forums.adobe.com/thread/891337''' See also: * '''http://kb.mozillazine.org/Flash#Troubleshooting'''

Question owner

FredMcD said

If you have problems with current Shockwave Flash plugin versions then check this:
  • see if there are updates for your graphics drive drivers
https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration
  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
https://forums.adobe.com/message/4468493#TemporaryWorkaround
  • disable hardware acceleration in the Flash plugin
https://forums.adobe.com/thread/891337 See also:


Hmm... I said that problem with html5 player, not with flash (last was disabled). Now it's not working yet and I just don't know whats going on

''FredMcD [[#answer-716537|said]]'' <blockquote> If you have problems with current Shockwave Flash plugin versions then check this: * see if there are updates for your graphics drive drivers '''https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration''' * disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later) '''https://forums.adobe.com/message/4468493#TemporaryWorkaround''' * disable hardware acceleration in the Flash plugin '''https://forums.adobe.com/thread/891337''' See also: * '''http://kb.mozillazine.org/Flash#Troubleshooting''' </blockquote> Hmm... I said that problem with html5 player, not with flash (last was disabled). Now it's not working yet and I just don't know whats going on
FredMcD
  • Top 10 Contributor
4248 solutions 59432 answers

Did you check for updates?

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options)
key, and then starting Firefox. Is the problem still there?

Did you check for updates? Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift><br> ''(Mac Options)'' ''' key, and then starting Firefox. Is the problem still there?

Question owner

FredMcD said

Did you check for updates? Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options)
key, and then starting Firefox. Is the problem still there?

Yea, when I reloaded with Safe Mode I can watch videos in html5, problem dissapear... Bit, what's wrong? Addons? I'm refresh my browser and delete all addons... What must doing next? Also, how can I totally remove FF from my PC? If I just reinstall, my old settings is still here. May be, totally removing will help me?

''FredMcD [[#answer-717623|said]]'' <blockquote> Did you check for updates? Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift><br> ''(Mac Options)'' ''' key, and then starting Firefox. Is the problem still there? </blockquote> Yea, when I reloaded with Safe Mode I can watch videos in html5, problem dissapear... Bit, what's wrong? Addons? I'm refresh my browser and delete all addons... What must doing next? Also, how can I totally remove FF from my PC? If I just reinstall, my old settings is still here. May be, totally removing will help me?

Chosen Solution

Hm, ok, I think i found silution: Advanced -> general -> "Use hardware acceleration when available" to off. I'll try update video drivers... But it helped me : https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems Thanks!

Second answer is also actual:"Also, how can I totally remove FF from my PC? If I just reinstall, my old settings is still here."

Hm, ok, I think i found silution: Advanced -> general -> "Use hardware acceleration when available" to off. I'll try update video drivers... But it helped me : https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems Thanks! Second answer is also actual:"Also, how can I totally remove FF from my PC? If I just reinstall, my old settings is still here."
FredMcD
  • Top 10 Contributor
4248 solutions 59432 answers

Helpful Reply

JAkutenshi said

"Also, how can I totally remove FF from my PC? If I just reinstall, my old settings is still here."

The Firefox program is in a folder in the computers Programs Folder. User profiles are kept in separate folders in the users folder.

''JAkutenshi [[#answer-717677|said]]'' <blockquote> "Also, how can I totally remove FF from my PC? If I just reinstall, my old settings is still here." </blockquote> The Firefox program is in a folder in the computers Programs Folder. User profiles are kept in separate folders in the users folder.

Question owner

Thank you a lot, FredMcD! ^_^ Have a nice day~

Thank you a lot, FredMcD! ^_^ Have a nice day~