If I have the Adobe SVG viewer installed, the ACID3 test reports the following errors: Failed 6 tests. Test 26 passed, but took 454ms (less than 30fps) Test 40 passed, but took 44ms (less than 30fps) Test 69 failed: Undefined value Test 74 failed: getSVGDocument failed for <iframe> referencing an svg document. Test 75 failed: Value undefined (result of expression svg.setCurrentTime) is not object. Test 76 failed: expected '0' but got '100' - Incorrect animVal value after svg animation. Test 77 failed: expected '3' but got '0' - getNumberOfChars returned incorrect string length. Test 78 failed: expected '90' but got '0' - getRotationOfChar(0) failed. Total elapsed time: 5.38s Uninstalling the viewer causes the ACID3 score to raise to 100/100. Since most users won't even remember they have a plugin installed, I suggest you notify user of this conflict. I sure didn't remember this until I started to systematically go through various components that might have affected the test score.
*** This bug has been marked as a duplicate of bug 17884 ***