The scrollbar isn't apparent in Firefox unless the table has a border value of at least '1'.

overflow:auto is most usable.

http://www.morad.info/

It's not actually adding a scrollbar to a table... it's adding a scrollbar to the div which contains the table, therefore the border of the table should not affect the code. You could change the table to a div, or just enter the text straight into that div, and get the same result.