Unless the installed browser blocks WebGL due to "unresolved driver issues" (such as Firefox on Ubuntu on an Atom N450 according to about:support). Or unless the installed browser doesn't implement WebGL at all (such as IE on XP or Vista, or Safari and Safari wrappers on iOS).
They laughed at Einstein. They laughed at the Wright Brothers. But they also laughed at Bozo the Clown. -- Carl Sagan