LG Dare VX-9700

i have never used verizons mobile web before this phone. i am unable to stay signed in to multiple websites at the same time. if i log into phonescoop for exampe it will save my login info fine. but if i go and sign into another site it will store the other site instead and drop the first. called verizon and they said it is normal. dont understand why. is this what happens to everyone else? i done have another phone to try.