841709 - Sluggish transitions in outlook.com

Status: UNCONFIRMED

(Firefox :: General, defect)

Description

[...]

User Agent: Mozilla/5.0 (Windows NT 6.2; rv:21.0) Gecko/20130214 Firefox/21.0
Build ID: 20130214032850



Actual results:

Clicking drop-down menus or changing folders results in sluggish transitions or no transition at all.


Expected results:

There should be smooth transitions between folders and drop-down menus.
Issue isn't present in both Chrome or IE.

Comment 1

[Loic]

Do you observe the same issue with Aurora or Beta or Firefox 18 versions?

Comment 2

[...]

It's smoother in Aurora using a new profile. But it still feels jerky.

The main issue is that when there is high CPU utilisation the transitions fail to appear at times.

Comment 3

[(mostly gone) XtC4UaLL [:xtc4uall]]

Is your Issue reproducible when you disable the Hardware Acceleration under Options/Advanced/General and restart Firefox?

Comment 4

[...]

Hardware acceleration is automatically disabled due to low computer specs.

Comment 5

[(mostly gone) XtC4UaLL [:xtc4uall]]

Since you tested against Chrome, does running Chrome with "--disable-gpu --disable-software-rasterizer" make a Difference?

Comment 6

[...]

The issue is somewhat reproducible with Chrome using the command given.
All the transitions are smooth, the only somewhat sluggish transition would be selecting a folder with lots of items. Even with this, the transition is still shown.

Firefox doesn't even show the folder transitions sometimes.

Comment 7

[Ioana (away)]

Can you reproduce this issue in safe mode? What about with a clean profile?
http://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
http://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

Comment 8

[...]

It's reproducible in both cases, but somewhat less evident with a clean profile.
This issue is probably most evident in old computers.

The transitions feel slightly faster with the latest nightly, but it's definitely not as smooth as IE 10.