Remove weird border when ctrl click td in firefox

Question

When I ctrl+ click on a td, that td will have weird border. It only occur in firefox. Would some one help me with it? Thank you very much.

Here is the live demo http

Answer 1

Add this line:

*{
  -moz-user-select: none;
}

Or, you may just apply this rule in table.

As per @tushar comment, if you want your text still be selected then you may use jquery like this:

$('table').on('mousedown', function(e) {
    if (e.ctrlKey) {
        e.preventDefault();
    }
});