Firestone is owned by Bridgestone. Bridgestone will not trickle down latest technology to Firestone. Same goes for Continental and General, or Michelin and BF Goodrich etc.
Originally Posted by Mr_Joe
The only head to head test I did was Blizzacks against Firestone Winterforce. The Blizzacks handily won, though the Firestone seem to be longer wearing. I realize there are other fine choices but Blizzacks do for me most of the time.