There are text to speech add-ons.

But what you want is a program that you have to buy at a store.

So there is not away to use my microphone to search within Firefox like I can do with Google chrome?

As I said, you need to buy a program for your system from the store.

See:

• bug 1286832 - [Win10] Cortana search no longer works with Firefox
• bug 1287622 - Remove Cortana-related code from mozilla-central (52+)

Please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html

Also see :
https://hacks.mozilla.org/2016/01/firefox-and-the-web-speech-api/