tablecell.getBoundingClientRect().right is not equal to tablecell.nextSibling.getBoundingClientRect().left.
But, IE and Chrome is working fine... I need to solution. Else i will move to Chrome and IE.
Due to performance i have choose Mozilla...
I am happy to hear that you have chosen Mozilla for performance. However the calls that you are making, are they not equal on more than one webpage?
Does it happen to be whitespace? https://developer.mozilla.org/en-US/d.../Node.nextSibling also see http://www.w3.org/DOM/faq.html#emptytext