Created attachment 8651515 [details] Long tooltip is placed wrong and cropped in a wrong way - corners on the right should be rounded.png STR: (Win7, Nightly 43.0a1 (2015-08-20)) 1. Open the following "data:" URL in a new tab: data:text/html,<script>var S=''; for (i=0;i<999;i++) S+='t'; document.title=S+' 2nd_line';</script> 2. Hover mouse over that tab to see the tooltip with title Result: Tooltip is cropped (that's ok), bug corners on the right are not rounded Expectations: Top-right and bottom-right corners of tooltip should be rounded Note that this bug is different from bug 233371, and this shouldn't be marked as duplicate of that bug, because if 233371 will be marked as WONTFIX, this bug would still be actual.
Note: This bug isn't only about rounded corners, but also about tooltip placement and visible text in tooltip So, add this to expectations: 2) Tooltip should be aligned near the element with <title> attribute which triggered the tooltip 3) Long strings should be broken into a smaller ones, so that all text in tooltip was visible
Yeah, this is definitely a duplicate of bug 863824, just like 949917. Thanks!