1699688 - Sliding animation not available on MacOS 10.15

Status: VERIFIED FIXED

(Core :: Widget: Cocoa, defect)

Description

[Martin Balfanz [:mbalfanz]]

The sliding animation seems to be only present on OS 11. I can‘t see it on 10.15

STR:

• open Firefox with the pref full-screen-api.macOS.shiftToolbar set to true
• enter full screen
• move the cursor up to the top of the screen

ER: the Firefox toolbars should slide down with a transition, similar to the Mac menu bar

AR: the Firefox toolbars move down in a jump without any animation/transition. It also jumps back up on reset, flashing white in between states.

Comment 1

[Martin Balfanz [:mbalfanz]]

Note: the behavior of 10.15 is visible in the video I added here: https://bugzilla.mozilla.org/attachment.cgi?id=9210225

Comment 2

[Alexandru Trif, Desktop QA [:atrif]]

This can be seen on our macOS 10.12, 10.13, 10.14, and 10.15 as well. So only macOS 11 has a smooth transition but has the white line as well.

Comment 3

[Harry Twyford]

This was fixed in bug 1700178.

Comment 4

[Alexandru Trif, Desktop QA [:atrif]]

Testing was performed in bug 1700178 and the bug is no longer reproducible. See here.