im facing the same problems.but thers a soultion.i dont know whether itll work for ur one.but, play in full screen mode.also every time u fire a shot til it reloads just use the mouse and click on ur tank.This certainly helpd me>

im also using Firefox but my one is totally messed up.

i hope they fix it soon.

my shaft has the same problem. also the turret spins out of control.when in sniper mode the scope goes haywire

yeah shaft isnt OP now.it requires more skill and frankly more fun now.

i agree.i use shaft/titan and it always helps me to get up the points table and also to get my team to victory.i mostly play team deathmatch.