Iulia Cristescu, QA [:JuliaC] (away, please needinfo? cornel.ionce@softvision.ro) Reporter
	Description • 6 years ago

[Affected versions]:
- 60.0a1 (2018-02-15)
- 59.0b10 build3 (20180215111455)

[Affected platforms]:
- Ubuntu 16.04 x64

[Steps to reproduce]:
1. Launch Firefox.
2. Open a new tab.
3. Drag a Top Site to a corner position and then release it.
4. Drag a Top Site outside the Top Sites area and then release it. 

[Expected result]:
- [step3], [step4] The animation is fast and smooth when the top site is moved back to its original position.

[Actual result]:
- [step3], [step4] The animation is slow when the top site is moved back to its original position (see the screencast https://goo.gl/3G4YNJ)

[Regression range]:
- This is not a regression as it is reproducible all the way back to 59.0a1 (2017-12-22), when bug 1402192 was implemented.

	Andrei Oprea [:andreio]
	Comment 1 • 6 years ago

This looks like default platform behavior. Maybe we should get UX feedback if we want to change it.

	Ed Lee :Mardak
	Comment 2 • 6 years ago

Is this specifically related to drag-n-drop? I seem to get the same drag-cancel / return to original animation speed for 60 with drag and 58 without.

	Iulia Cristescu, QA [:JuliaC] (away, please needinfo? cornel.ionce@softvision.ro) Reporter
	Comment 3 • 6 years ago

(In reply to Ed Lee :Mardak from comment #2)
> Created attachment 8951715 [details]
> video 60 vs 58
> 
> Is this specifically related to drag-n-drop? I seem to get the same
> drag-cancel / return to original animation speed for 60 with drag and 58
> without.

Yes, indeed, this seems to also affect the past builds behaviour (the ones without drag-n-drop).

	Ed Lee :Mardak
	Comment 4 • 6 years ago

Sounds like this is intended os behavior.