User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.0.4) Gecko/20060709 Firefox/1.5.0.4 Build Identifier: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.0.4) Gecko/20060709 Firefox/1.5.0.4 When using createElement to insert an element before another element, and there is an adjacent sibling selector, this selector is never functional. Reproducible: Always Steps to Reproduce: 1. Open a webpage using this functionality Actual Results: The selector was not matched, and the style as a result was not updated Expected Results: Selector should have matched, and style altered.

*** This bug has been marked as a duplicate of 229915 ***