Created attachment 8852797 [details] failing test cases Stuff like <input>, <textarea>, <select> are not missing, causing a few hundred reftest to fail on stylo-to-gecko reftest.
This is high priority, but the first line of investigation is already happening in bug 1349651, so marking p2. We can reevaluate if there are other failures when that bug is fixed.
Input, selection and button are fixed, the only one left are bug 1367345. So closing this as worksfor me.