756832 - page automatically jumps down after being displayed

Status: RESOLVED INCOMPLETE

(Firefox :: Untriaged, defect)

Description

[dreapadoir]

Attachment: FF12JumpDownBug.jpg

User Agent: Mozilla/5.0 (Windows NT 5.1; rv:12.0) Gecko/20100101 Firefox/12.0
Build ID: 20120420145725

Steps to reproduce:

Click on 'Sports' item in Yahoo main page


Actual results:

Yahoo Sports page displays, then automatically jumps down to some middle part of the page; usually in vicinity of a blocked ad.


Expected results:

Page should be displayed and remain at the top. It should not automatically jump down.

This happens on numerous pages, the attached example shows the Yahoo Sports page displayed after auto-jumpdown.

Comment 1

[Matthias Versen [:Matti]]

Can you reproduce this in the Firefox safemode ?
http://support.mozilla.org/en-US/kb/Safe+Mode

Comment 2

[Alice0775 White]

If you blocked some host then this is duplication of bug 748803

Comment 3

[u279076]

Has the page been loaded before? Some websites cache a previously scrolled to position and will jump down automatically on load.

Comment 4

[dreapadoir]

Hello Anthony:
In response to your question below, No. Even with cache cleared the page auto-jumps down to an apparently blocked ad.
Screen snaps are attached:
JumpDown1.jpg results from selecting "Sports" from the Yahoo main page menu.
Also in addition to dozens of various Warnings (parsing/unknown property/css) there are 2 console Errors:
Timestamp: 5/26/2012 10:44:47 PM
Error: Y.Sports.Draft is undefined
Source File: http://sports.yahoo.com/
Line: 1001
Timestamp: 5/26/2012 10:45:40 PM
Error: no element found
Source File: http://prod1.rest-notify.msg.yahoo.com/v1/pushchannel/dreapadoir?seq=6&format=json&idle=110&imtoken=2KHr9Y4WaRZDEKxh9H2l_WoHUK0TY7BiC9BltcoVQJGA2Gqsue6tzFtEVk5uOFEmCMb2sjiPjkhXopfo-%7CYeTQVwFuxVEWty9YL0KAmg--&sid=3P.ONqns3BnYhGgxotU809jJ07ELfjsfFyuj&c=hwIqiw28wy3&msgrAppId=mim&cache=1338086621517
Line: 1

JumpDown2.jpg results from selecting "NHL" in the Yahoo Sports page.
There were no Errors displayed in the console.

This behavior happens in any Yahoo page where an ad is blocked.
Frame info for several of these ads shows:
http://ad.yieldmanager.com/st?_PVID=gltLoWKLPnAA0qLcTLcCMgKzQ_LSY0_Bm5cACRlV&cnt=yan&ad_type=iframe&ad_size=300x250&site=140503&section_code=14445135&cb=1338088343878691&yud=zip%3D%26ycg%3Dm%26yyob%3D1970&pub_redirect_unencoded=1&pub_redirect=http://global.ard.yahoo.com/SIG=15qeq3887/M=787833.14445135.14291901.12879774/D=media/S=16335623:LREC2/_ylt=Aihmi6i2bCnexOpXbvbWcBwHQ_kA/Y=YAHOO/EXP=1338095543/L=gltLoWKLPnAA0qLcTLcCMgKzQ_LSY0_Bm5cACRlV/B=zmiiBUwNPOM-/J=1338088343878691/K=wxCS_62zZFlPC3iMHR44KQ/A=6261421/R=0/*

http://ad.yieldmanager.com/st?_PVID=SYu3PkwNdHEA0qLcTLcCMgNxQ_LSY0_BnGcADXGJ&cnt=yan&ad_type=iframe&ad_size=300x100&site=140509&section_code=14800347&cb=1338088552090468&zip=&ycg=m&yyob=1970&pub_redirect_unencoded=1&pub_redirect=http://global.ard.yahoo.com/SIG=15qlnm2ma/M=787833.14800347.14555521.14177427/D=sports/S=2566482 5:MREC/_ylt=ArEcLONO8t6spmxipTA3EIw5nYcB/Y=YAHOO/EXP=1338095752/L=SYu3PkwNdHEA0qLcTLcCMgNxQ_LSY0_BnGcADXGJ/B=sEedBWKImkA-/J=1338088552090468/K=t6hxMDwGpiI7iTdCZUnqbg/A=6454134/R=0/*

Comment 5

[u279076]

Do you have autoscrolling enabled? Tools > Options > Advanced > General > Browsing

Comment 6

[dreapadoir]

Use Autoscrolling is checked. Use Smooth Scrolling is unchecked.
These settings have not been changed by me. If Autoscrolling is the cause of the 'jumpdown' to blocked ads, then it seems to only affect certain ads and/or FF12 has changed the default setting to Use Autoscrolling.
To test this, I unchecked UseAutoscrolling, saved the changes, deleted the recent history and relaunched FF12. The same jumpdown behavior was observed.

This does not occur in Opera. I do not use Google or IE.

Comment 7

[Matthias Versen [:Matti]]

Reporter: Do you block some domains with some entries in the windows host file ?
You mentioned blocked ad: How do you block them ?

Comment 8

[dreapadoir]

Matti:

The FF pop-up window block is checked, and there is a Hosts file. 

If Mozilla has an updated/automated Hosts or cookieperm list, send the link and I will try that.

**However, it is important to keep in mind that this 'jumpdown' behavior did not occur in the previous FF, nor does it occur in Opera.**

Comment 9

[Matthias Versen [:Matti]]

There is of course a host file. The host file is part of most OS. You can block some hosts if you add entries to this file and we have a known bug in Firefox12 that will cause the reported behavior.

Please try Firefox 13 beta where this bug is fixed.

Comment 10

[Stefan Weiss [:sir_none]]

Hello,

I just found this 2 years old bug you have opened...
about this topic there was somebugs opened in 2012 (looks like it was a setting on the website of yahoo)
can you please confirm that this is no more a problem for you with actual FF?

thanks for your help

Comment 11

[Stefan Weiss [:sir_none]]

Closed -> no feedback from reporter.

please feel free to reopen this report if you have new or additional information.
thank you for your help.