<!DOCTYPE html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=767684 --> <title>Test for Bug 767684</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" href="/tests/SimpleTest/test.css"> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=767684">Mozilla Bug 767684</a> <div contenteditable>foo<b>bar</b>baz</div> <script> getSelection().selectAllChildren(document.querySelector("div")); document.execCommand("increaseFontSize"); is(document.querySelector("div").innerHTML, "<big>foo<b>bar</b>baz</big>", "All selected text must be embiggened"); </script>