Fire and smoke are additional analytical modules and are available as a separate paid add-on.
Fire detection add-on is designed to detect relatively large fires, it is not suited to detect someone lighting up a cigarette or other small sources of fire like matches or candles. The fires should be at least 4%-5% square of the image size to be detected, here is an example of a smaller-sized fire that can be already detected:
Smoke detection works for opaque smoke. Smoke from cigarettes or vaping devices is typically not opaque enough to be detected.