Firefox does not seem to support line feeds in the title attribute. I have tried \r
, \r\n
, \n
, 
,
, and still found nothing that works.
Does anyone have a hack to get around this?
There is nothing is the spec about how exactly browsers have to display the value in title attributes.
Is simply says:
Values of the title attribute may be rendered by user agents in a variety of ways. For instance, visual browsers frequently display the title as a "tool tip"
(Emphasis mine)
So, not only is there nothing about line breaks, but the actual behavior of "tool tip" is not mandatory.