What is up with Fire Fox 3?

What the blazes is up with Fire Fox 3???

Everything is off by 1 pixel. What a pain in the neck!

Notice in the image above, that the segment seems to overlap to the right?

Notice in the image above, that the segment seems to indent to the right?

Now I've got to go and change EVERY SITE I EVER DESIGNED!

Notice how in the images a section is off by 1 px to the left?

I did fix this by going:

html {
height:100%;
background-color: #ffffff;
background-image: url('../images/container.jpg');
background-repeat: repeat-y;
background-position: center top;
margin:0px -1px 0px 0px;
padding:0px 0px 0px 0px;
font-size:1em;
font-family:Arial, Helvetica, sans-serif;
}

Shouldn't have to do this though, and it adds a stupid scroll-bar to the bottom of FF3 browser window. *Sigh*

I really hope it's just a bug that will be fixed in the next update... *hopeful fluttering of eyes*