I would not recommend tire chains on the front tires.
The question about using chains on the front tires has been debated before on this site.
Some folks have tried it and gotten away with out having any problems,
but some have tried and seriously damaged their front end drive.
The front end mechanical assembly is not as beefy as the rear,
and extra traction on the front (tire chains) could result in extra stress, in some situations,
that the could cause serious front wheel drive damage.
For the last 8 years, I have run chains on just the rear tires of my
B7800 (with rear mount snow blower)
and will usually only engage 4 wheel drive on hilly sections on my icy driveway.
Good Luck