I used an approach to boilerplate dummy text like this. Once. It's all it took, because I immediately got a report in our issue tracker that FireFox renders the

I used an approach to boilerplate dummy text like this. Once. It's all it took, because I immediately got a report in our issue tracker that FireFox renders the text with boxes. Now we routinely copy/paste similar content from similar pages and use that in live mockups.