text: Firefox three green checks | Brave New LIS
  Firefox three green checks
  tags: firefox, validation tools
  With the last assignment I held confidence in Firefox's three green checks as a valid validation indicator of well written XHTML, however my trust was misplaced. I would suggest to always uses the validation tools drop down, it seems to be more reliable.
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  The three green checks mean the browser didn't find any errors that affect the page render; validity is not necessarily the same thing as functionality. Today's browsers are really good at "making do" with bad code.