It is but how you do it depends on what other external sources you have other than the firestick.
The receiver has two HDMI inputs so you can connect the stick and one other source to the receiver. The HDMI out of the receiver does to the TV HDMI input. You would connect the audio output of the TV to an audio input on the receiver to get sound from the TV tuner or apps to the receiver.
If you have more than two sources then you need to add an HDMI input selector to expand the number of HDMI inputs.