User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:16.0) Gecko/16.0 Firefox/16.0a1 Build ID: 20120609030536 Steps to reproduce: 1. Press Cmd+N to open a new browser window, then type https://addons.mozilla.org/en-US/firefox/ in the address bar and press Enter 2. Inspect the #search > button.search-button Actual results: A src-attribute is present. src='https://static-ssl-cdn.addons.mozilla.net/media/img/zamboni/global/btn-search.png?b=3687a20' Expected results: The src attribute is not a valid attribute on the button element, it is safe to and it should be removed. http://dev.w3.org/html5/spec/single-page.html#the-button-element
I assume this was added as a fix for an old IE issue or something. Is this a problem for anything other than validating properly?
Thanks for filing this. Due to resource constraints we are closing bugs which we won't realistically be able to fix. If you have a patch that applies to this bug please reopen. For more info see http://micropipes.com/blog/2014/09/24/the-great-add-on-bug-triage/