Firestone tires are decent tires, they have been making performance racing tires for decades. I am not sure about the numbers of blowouts they had, but I bet they have made some changes in the last 15 years to improve general use tire quality.
IMO, The 90's tire blowout and rollover fiasco was blamed on Firestone. Ford spent big $ on pushing the blame. In reality, it was a time when many people who had once driven passenger cars were switching to SUV's like the Explorer. We have always had tire blowouts, but I see them happening less and less as tires improve. What happens when you place a driver into an SUV that has always been in a passenger car, and then a tire blows and they overcorrect...they're more likely to roll.
I agree with UT ZJ that they will not be a good tire on the roads in the winter months, no mudder really is. But the firestone has zero siping. I think that the BFG mudder and the Firestone would be the worst mud tire on snowy roads.
Assuming this is a Daily Driver, and that your conditions in CO are similar to mine in Northern Utah, I would recommend the Duratrac (Just DON'T get a load range E Duratrac, it should come in a C or D in that range) or a BFG A/T. The duratrac is a more agressive A/T, and it gets even better ratings than the BFG for snow driving. The BFG is a great tire, and served me well for years of road driving, and many trips to moab. Overall, it is the best tire I have owned on a Jeep. My wife wanted something more agressive, so we went back to the GY MTR. The duratrac is only made in a load range E in my size, and those ride funny on a WJ IMO.