The biggest problem fighting fires are lethal to humans high temperatures and lack of easy access to places affected. Those two problems would be irrelevant to properly designed drones that can easy maneuver and are built from temperature-resistant materials.

Instead of huge drone carrying water (we already have planes to do that now), I was envision a network of connected drones that "pass by" the water as they hover in the line all the way from water pool to fireplace. The video attached previously shows you group of drones perfectly communicating with each other.

I never said it was easy to develop, but I have to disagree its something "way beyound the current levels" of technology. Further, the cost to design, develop and implement would be pennies comparing to an average damage of mid-size fire. Not the mention about life-loss.

You either need large payloads or large numbers, but Thousands of drones flying around would likely lead to accidents. Accidents woudl likely lead to new fires, considering most of these things are happening in areas that are tinderboxes with significant aggrivating factors (high winds, exposure, etc).

The strategy for containing these fires is typically fuel deprivation, rather than "flame extinguishment" which is so difficult if not impossible for the above reasons. The guys that jump out of planes to fight backcountry fires, for example, are armed with axes and saws. Absent something like a star-wars (AT-AT) its not clear a direct frontal confrontation is pyhsically feasible, even from the air, for many fires.