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Video - black screen

  • 3 replies
  • 1 has this problem
  • 6 views
  • Last reply by FredMcD

JohnathanStein
JohnathanStein
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Since the update to FireFox 50.0, I have had video problems.

While YouTube runs fine, other sites do not.

On the following page, only Video TWO will play: http://www.floracopeia.com/education/pharmacy-of-flowers-essential-oil-home-study-course.html

On this page, it says "Video format or MIME type is not supported": https://www.breathingcenter.com/Breathing-Test

Since the update to FireFox 50.0, I have had video problems. While YouTube runs fine, other sites do not. On the following page, only Video TWO will play: http://www.floracopeia.com/education/pharmacy-of-flowers-essential-oil-home-study-course.html On this page, it says "Video format or MIME type is not supported": https://www.breathingcenter.com/Breathing-Test

All Replies (3)

FredMcD
FredMcD
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As a test, disable your flash and ad blockers.

JohnathanStein
JohnathanStein Question owner
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Done, but no joy.

FYI, I then went so far as to uninstall both and tried again. Still no joy.

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

  • see if there are updates for your graphics 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: