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Firefox can play videos in safe mode but not in normal mode. I have disabled all the plugins, reset the browser but problem still continues.

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Everything works fine about the videos when I use in safe mode but when I switch to normal mode, in most of the websites (e.g. Vimeo) the videos cannot be played. I have reset the browser so currently I have no add-ons, I downgraded the Adobe Flash Player to 10.3 still problem is not solved.

Since flash player works fine in safe mode but node in normal mode, I doubt this problem is related to Firefox not Adobe Flash Player.

Everything works fine about the videos when I use in safe mode but when I switch to normal mode, in most of the websites (e.g. Vimeo) the videos cannot be played. I have reset the browser so currently I have no add-ons, I downgraded the Adobe Flash Player to 10.3 still problem is not solved. Since flash player works fine in safe mode but node in normal mode, I doubt this problem is related to Firefox not Adobe Flash Player.

All Replies (5)

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In order to be able to find the correct solution to your problem, we require some more non-personal information from you. Please do the following:

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Thanks in advance for your help!

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ideato trɔe

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Thank you ideato. Disabling hardware acceleration solves my problem. Now everything works fine. But is it going to decrease the performance of firefox since I will not use hardware acceleration?

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Hardware acceleration is using GPU when it’s possible to help page-drawing operations faster, but the increase of performance is negligible (if working well).

see for more info:

https://wiki.mozilla.org/Platform/GFX/HardwareAcceleration

https://hacks.mozilla.org/2010/09/hardware-acceleration/

EDIT : same in flash player http://en.wikipedia.org/wiki/Hardware_acceleration

thanks again

ideato trɔe

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OK. Thank you again...