Open Bug 1592458 Opened 4 months ago Updated 1 month ago

Rapidly scrolling using touchpad causes tab bar to move


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

70 Branch



Tracking Status
firefox70 --- wontfix
firefox71 --- wontfix
firefox72 --- fix-optional


(Reporter: yoasif, Unassigned)


(Blocks 1 open bug, Regression)


(Keywords: regression)


(2 files)

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).


  1. Open a window with enough tabs to cause the tab bar to become scrollable
  2. Navigate to sites like:
  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:

Attached file about:support
Has Regression Range: --- → yes
Has STR: --- → yes
Regressed by: 1564238

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

Priority: -- → P3
Priority: P3 → P5
Blocks: wayland
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