User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8) Gecko/20051111 Firefox/1.5 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8) Gecko/20051111 Firefox/1.5 There is absolutely no reason why Firefox 1.5 needed to break a primary XUL interface such as getCellValue. This breaks a ton of example as well as thousands of lines of our production code. A simple solution would be to do a type-check on the argument, if it isn't a column assume it is a column id and get your column object with tree.columns[id]. Reproducible: Always
Well, what's done is done. You can see the discussion in bug 221619.