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Any position:fixed div inside of an overflow:auto div has severe stutter on Linux Firefox 3 builds

NEW
Unassigned

Status

()

Core
Layout
9 years ago
9 years ago

People

(Reporter: Lance R. Vick, Unassigned)

Tracking

({testcase})

1.9.0 Branch
x86
Linux
testcase
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(URL)

Attachments

(1 attachment)

(Reporter)

Description

9 years ago
User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.3) Gecko/2008100514 Gentoo Firefox/3.0.3
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.3) Gecko/2008100514 Gentoo Firefox/3.0.3

Position:fixed elements (at least in this senario) jitter and shift several pixils while scrolling up and down. When the scrolling stops they restore to their correct fixed position.

Reproducible: Always

Steps to Reproduce:
1.Vist url with position:fixed element on Linux build of firefox 3.
2.Scroll up and down
Actual Results:  
The position:fixed element violently shifts pixils up and down while scrolling up and down.

Expected Results:  
The element shold remain totally fixed in place as with firefox 3 on windows and osx.

1. Verified this issue on 4 gentoo linux machines and one arch linux machine.
2. The problem cannot be reproduced on any OSX or Windows builds we tried.
3. The problem does not exist on firefox 2 on any machine we tried.
(Reporter)

Updated

9 years ago
Version: unspecified → 3.0 Branch
(Reporter)

Comment 1

9 years ago
Created attachment 351120 [details]
testcase
(Reporter)

Updated

9 years ago
Attachment #351120 - Attachment description: Test Case. (10 lines) → testcase
Attachment #351120 - Attachment mime type: text/plain → text/html
(Reporter)

Updated

9 years ago
Summary: position:fixed has sever stutter on Linux Firefox 3 builds → Any position:fixed div inside of an overflow:auto div has severe stutter on Linux Firefox 3 builds

Comment 2

9 years ago
I can confirm this bug on 2 different machines, Ubuntu and Gentoo.

Comment 3

9 years ago
Confirmed on:
Ubuntu 8.04, fully updated as of Dec 3, 2008
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/2008111317 Ubuntu/8.04 (hardy) Firefox/3.0.4

Comment 4

9 years ago
confirming 
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b3pre) Gecko/20081203 Shiretoko/3.1b3pre ID:20081203025549
Status: UNCONFIRMED → NEW
Ever confirmed: true
Component: General → Layout
Product: Firefox → Core
QA Contact: general → layout
Version: 3.0 Branch → 1.9.0 Branch
Keywords: testcase
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