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Youtube embeds shows up black

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Anytime I go to a webpage with a YouTube video embedded it shows up as a black box.

Anytime I go to a webpage with a YouTube video embedded it shows up as a black box.

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If you use extensions (Tools > Add-ons > Extension) like Adblock Plus or NoScript or Flash Block that can block content then make sure that such extensions aren't blocking content.


Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

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Thanks. I tried restarting in safe mode and disabling Add-ons and the embedded videos still aren't showing up.

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Try to disable the hardware acceleration in the Flash Player.

See:

Flash "Display settings" window: