It's good to be aware of this. A few year back I was making a layered jello dessert, and I was mixing one of the jello colors in a glass bowl. I poured in the boiling water, and the bowl just cracked and broke, sitting right there on the counter. You can imagine the mess, boiling jello water pouring out in all directions and a bunch of broken glass...
It was a bowl I had used for that purpose before, and I was just so shocked that it broke. Made me a lot more leery of using glass for such things ever since...