1592458 - Rapidly scrolling using touchpad causes tab bar to move

Status: RESOLVED WORKSFORME

(Core :: Widget: Gtk, defect, P5)

Description

[Asif Youssuff]

Attachment: Screencast from 10-29-2019 07:35:36 PM.webm

Noticed that if I am rapidly scrolling using my touchpad on certain pages in the upper right side of the pages (easiest way for me to reproduce, but may occur elsewhere) causes the tab bar to move left (as in, eventually, the first tab in the window will be shown).

STR:

1. Open a window with enough tabs to cause the tab bar to become scrollable
2. Navigate to sites like: https://www.theringer.com/nba/2019/10/6/20901828/daryl-morey-hong-kong-china-houston-rockets-tweet-controversy https://deadspin.com/steve-kerr-reminds-us-who-the-nbas-unifying-powers-real-1838981265 https://www.nytimes.com/2018/12/14/business/china-economy-xi-jinping.html
3. Scroll up and down with cursor over top right of window, about 100 pixels down into viewport

What happens:

The tab bar moves

Expected result:

Tab bar does not move.

17:30.66 INFO: No more inbound revisions, bisection finished.
17:30.66 INFO: Last good revision: b8f19d6b876273bc08c8e82bf72282d923a97a7d
17:30.66 INFO: First bad revision: f7bd517e7949ca3bbc000f704087daba4bc5ccfb
17:30.66 INFO: Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=b8f19d6b876273bc08c8e82bf72282d923a97a7d&tochange=f7bd517e7949ca3bbc000f704087daba4bc5ccfb

Comment 1

[Asif Youssuff]

Attachment: about:support

Comment 2

[Liz Henry (:lizzard) (relman/hg->git project)]

Too late for a fix in 70 but we could still take a patch for 72.

Comment 3

[Martin Stránský [:stransky] (ni? me)]

Asif, do you still see that?
Thanks.

Comment 4

[Asif Youssuff]

Martin, I can't reproduce this issue anymore.

Comment 5

[Martin Stránský [:stransky] (ni? me)]

Thanks!