User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 (.NET CLR 3.5.30729) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 (.NET CLR 3.5.30729) Firefox 3.5 has implemented the word-wrap:break-word CSS property. As described here: https://developer.mozilla.org/en/CSS/Word-wrap However, this does not seem to work within XUL. Reproducible: Always Steps to Reproduce: <vbox style="max-width:150px; background:gold; word-wrap:break-word;"> http://thisIsAVeryLongUrlThatShouldBreakWithWordWrapBreakWordButDoesNot.com/ </vbox> Actual Results: The url remains on one line, running outside of the desired 150px max-width. Expected Results: It should break the url so that the vbox stays at a max of 150px

I've repro'd the above in 3.6.3. break-word also does not work on a <td> element.