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How to change mic that connects with web applications (for example WhatsApp)?

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While using WhatsApp recording after giving permission for Firefox to use mic it uses built in mic instead of default PC one. Can I change microphone in FIrefox?

While using WhatsApp recording after giving permission for Firefox to use mic it uses built in mic instead of default PC one. Can I change microphone in FIrefox?

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I don't recall seeing an option for this in Firefox. A workaround is to disable all but the necessary microphone so it becomes the system default; assigning it the system default status in Windows' mixer might also work, but sometimes programs read the microphone priorities funny, and the first list entry gets chosen instead of the default.