Created attachment 8888155 [details] Screenshot_20170719_203832.png I am seeing a rendering glitch on the following page: <https://github.com/solson/miri/pull/262> Steps to reproduce: * Hover the word "Fixes" -> a "tooltip" appears explaining things * Move the mouse elsewhere Expected behavior: The tooltip disappears. Actual behavior: The tooltip leaves behind a horizontal black bar where the bottom of the tooltip used to be. I will attach a screenshot. This is with 56.0a1 (2017-07-19) (64-bit) on Linux, Debian testing amd64, Intel video card. (I wasn't sure whether Bugzilla or Webcompat are the right venue for this bugreport. Please let me know if I should report elsewhere.)
Is this a recent regression?
Component: General → Untriaged
Component: Untriaged → Graphics
Product: Firefox → Core
> Is this a recent regression? I do not know. I have not seen this before, but I also have not ever looked at this particular tooltip before. It does not happen in FF 54.
I can reproduce it in fx57 when e10s is disabled.
status-firefox55: --- → affected
status-firefox56: --- → affected
status-firefox57: --- → affected
Priority: -- → P3
You need to log in before you can comment on or make changes to this bug.