Straight from Bugzilla@Mozilla: Gecko now supports
text-overflow:ellipsis! While not a major breakthrough, I really like that Mozilla has incorporated this change. Truncation and hiding overflow gets the job done, but it’s not nearly as graceful as the best use case for each scenario.
If you’re not familiar,
text-overflow:ellipsis will allow you to hide overflow copy from an element, but instead of literally chopping it off at the pixel, you’ll be provided with an ellipsis at just the right time.