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No audio in firefox, works fine in IE & Chrome. Have Dell E6500 running Win 7 Pro 64 bit. every thing works with native windows driver but with not IDT driver

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I have no Audio in Firefox. I think this is an old problem with Dell IDT driver and Firefox. Flash is installed, I have uninstalled and re-installed two or three times, removed pluggins and put them back to no avail. The native win 7 driver from 2010 works okay in all browsers including firefox but I would like an up-to-date driver that works. The latest IDT driver for my Dell e6500 running Win 7 pro works great in IE and Chrome but not Firefox.

I have no Audio in Firefox. I think this is an old problem with Dell IDT driver and Firefox. Flash is installed, I have uninstalled and re-installed two or three times, removed pluggins and put them back to no avail. The native win 7 driver from 2010 works okay in all browsers including firefox but I would like an up-to-date driver that works. The latest IDT driver for my Dell e6500 running Win 7 pro works great in IE and Chrome but not Firefox.

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Did you check if there are any setting in that driver that you can change?

Do you see the Firefox plugin-container process in the volume control?
Click the volume icon on the task bar to open the mixer.

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I don't think there was any setting I could change on the driver. Firefox did not show up in the mixer or volume control. It is there with the native win 7 driver. This driver doesn't seem to see Firefox. I just got this computer, but looking for help, posts three years ago on the web seemed to have this problem with the Dell e6500 and Firefox.