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No sound or audio in flash. | Firefox Support Forum ...
https://support.mozilla.org/en-US/questions/1066983
I have: Firefox 38.0.5 Shockwave Flash 18.0.0.160 Problem is that when I watch a video that is NOT in youtube, there seems to be no sound. This happens on sites such as: twitch.com kissanime.com (In this site the have the option to play videos in HTML5, which works fine) and website with flash games like: kongregate.com.
audio - Firefox Flash HDMI No Sound - Ask Different
https://apple.stackexchange.com/questions/299221/firefox-flash-hdmi-no-sound
When viewing video with flash player in firefox the sound is played through HDMI altough my USB headset is set as the default sound device. All other sound is played trough the default sound device EXCEPT flash player sound. Restarting firefox doesn't help. Reinstalling the flash player plugin doesn't help. To which the answer says:
Step-by-Step Guide: How to Enable Flash in Firefox
https://www.minitool.com/news/how-to-enable-flash-in-firefox.html
In your Firefox browser, type about: addons in the address bar and press Enter. On the addons page, locate the Adobe Flash Player. Then select Always Activate from the drop-down menu. After all steps are finished, you close the Addons tab and refresh your Digication page to finish enabling Flash.
What to do if Firefox won't play any sounds | Firefox Help
https://support.mozilla.org/en-US/kb/what-to-do-if-firefox-wont-play-any-sounds
Check the Volume Mixer Open Firefox and play content that should play sound, such as this Firefox video or a Flash video with sound . Click Right-click the volume icon in the Windows taskbar. Click Mixer Open Volume Mixer . The Volume Mixer window will appear. Make sure the slider for Mozilla ...
How To Fix No Sound In Firefox Browser? [SOLVED]
https://silicophilic.com/no-sound-in-firefox/
HowTo: Fix Firefox Flash Sound Issues
https://ubuntuforums.org/showthread.php?t=255422
Re: HowTo: Fix Firefox Flash Sound Issues Thanks for the fix but I'm not sure that this isn't just a band-aid. Prior to the updates on Sept 19 I …
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