1539401 - [Netflix] Dragging control buttons from thumbnail videos makes them appear near the cursor outside the window

Status: NEW

(Core :: Layout, defect, P3)

Description

[Alexandru Trif, Desktop QA [:atrif]]

Affected versions

• Firefox 67.0b5 (20190325125126)
• Firefox 68.0a1 (20190326214944)
• Firefox 66.0.2 (20190326175229)

Affected platforms

• macOS 10.14
• Windows 10 x64
• Ubuntu 18.04 x64

[Prerequisites]:

• Have a valid netflix account.

Steps to reproduce

1. Open Firefox and go https://www.netflix.com/.
2. Login with the account from the prerequisites.
3. Hover over a random video from the right side of the browser.
4. Drag a random control button (ex: sound control).

Expected result

• The video controls can’t be dragged.

Actual result

• Dragged controls appear far from the mouse indicator.

Regression range

• This is not a recent regression because I can reproduce it on Firefox 59.0a1 (20180112220334). I will search for a regression range ASAP.

Additional Notes

• The issue is also reproducible by dragging video controls from the left side of the browser.
• On macOS the behavior is different and the dragged content comes at the mouse indicator location.
• Clicking the right arrow to see more videos from that category and dragging a video control button from the left side makes him appear far away from the mouse cursor.
• Attached a screen recording with the issue: link.

Comment 1

[Alexandru Trif, Desktop QA [:atrif]]

I tried searching for a regression but with no luck, because on Firefox 30.0a1(2014-02-04) the issue is still reproducible and on older builds from this date nothing happens when hovering the video, so I think this is not a regression for this particular case.

Comment 2

[Daniel Holbert [:dholbert]]

This sounds like it might be related to bug 1376369 (-moz-user-select and/or draggable keywords)... not sure if Netflix is using that styling though, as I don't have netflix credentials handy.