Animation on the website is displaying slowly and other tabs become very slow as well.

NEW
Unassigned

Status

()

Core
Graphics
P3
normal
a year ago
9 months ago

People

(Reporter: bwu, Unassigned)

Tracking

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: [gfx-noted])

(Reporter)

Description

a year ago
I use the latest nightly on my Macbook Pro (OS 10.12.3). 

1. Go to event.elle.com.tw/2017/ellerun/
2. Wait it to finish loading 

That tab is loading slowly. Firefox becomes very slow. Other tabs barely work. Chrome can play it well.
Hi Blake,

I tested this issue on Mac OS X 10.12 on Macbook Pro with FF Nightly 54.0a1(2017-03-05) and I can't reproduce it. In my case, the tab is loading as fast as on Safari, I can open other tabs without making Firefox slowly. 

For testing this issue, I use a new profile without add-ons. Blake please see if this is reproducible in safe mode with the latest Nightly version. Thanks
Flags: needinfo?(bwu)
(Reporter)

Comment 2

a year ago
It is weird that I can still see this problem with safe mode. 
Eric, 
Can you repro this problem?
Flags: needinfo?(bwu) → needinfo?(etsai)
We seem to be overpainting here. If I turn on paint flashing in devtools, the banner is painting pretty much every frame.

This might be a graphics bug.
Yes, I'm able to reproduce this using Firefox 54 Nightly (2017-02-23 & 03-06) on Mac OS X 10.11.

Performance record shows Gecko spends half and graphics spends the other half. After load done, it works good for me.
Flags: needinfo?(etsai)

Updated

a year ago
Component: Untriaged → Graphics
Product: Firefox → Core
Whiteboard: [gfx-noted]
Priority: -- → P3
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