1192204 - Scrollbar is overlapping the Quality entries via Youtube high resolution videos

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

[Ada [:adalucinet]]

Reproducible on all branches: Firefox 40.0 build 4 (Build ID: 20150806153638), latest 41.0a2 and 42.0a1 (both from 2015-08-06)
Affected platforms: Windows 7 64-bit, Mac OS X 10.9.5, Windows 8.1 32-bit

STR:
1. Launch Firefox.
2. Go to a high resolution Youtube video - E.g.: https://www.youtube.com/watch?v=iNJdPyoqt8U
3. Attempt to change video quality.

Expected result: All Quality entries are visible and properly displayed.
Actual result: Scrollbar is overlapping the Quality entries.

Additional notes:
1. Screenshot:
1.1 via Windows 7 x64: http://i.imgur.com/PYdth0i.png
1.2. via Mac OS X 10.9.5: http://i.imgur.com/4TuQgUu.png
2. Also reproducible with 39.0b7 - most probably it was introduced by the new YouTube Controls UI. Works with Chrome (on Windows).

Comment 1

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Jet - this isn't a media playback issue. I'm guessing layout?

Comment 2

[Jet Villegas (inactive)]

It looks like Chrome doesn't inflate their scrollbars on mouseover, except on the main viewport. Works fine when you stop mousing over the scrollbar, and doesn't prevent selecting a menu item. This is working as designed. If the desired result is to emulate the Chrome behavior for sub-frame scrollbars, please file a separate UX bug for that.

Comment 3

[Cristian Comorasu, QA [:ccomorasu], Releae Desktop QA - Please contact [e-mail]]

This issue is no longer reproducible.

Comment 4

[Timea Zsoldos [:zstimi/tzsoldos], Desktop QA]

Attachment: Screen Shot 2017-06-28 at 14.52.53.png

The issue is reproducible on Mac 10.12, used Firefox DevEdition 550b5, buildID: 20170626165718, see attached screenshot.