419362 - When reloading a page, Firefox shouldn't redisplay it until the current scroll position has been reached

Status: NEW

(Firefox :: General, defect)

Description

[Vincent Lefevre]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1.12) Gecko/20080201 Firefox/2.0.0.12
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1.12) Gecko/20080201 Firefox/2.0.0.12

With some pages (e.g. see the above URL), when Firefox reloads the page (either due to an automatic reload or because the user clicked on the Reload button) it displays the beginning of the page then restores the scroll position. The problem is that it distracts the user from reading the page and this is particularly annoying on pages that need to refresh their contents regularly.

Reproducible: Always

Steps to Reproduce:
(Happens every time with some pages, never happens with other pages.)
1. Open the above URL.
2. Scroll downwards.
3. Click on the Reload button.
Actual Results:  
First the beginning of the page is redisplayed, then the scroll position is restored.

Expected Results:  
Firefox shouldn't redisplay the page until it can render it at the wanted position. In particular, this means that if the page hasn't changed, nothing should be redisplayed.

Comment 1

[Ria Klaassen (not reading all bugmail)]

Maybe you can do something with the pref nglayout.initialpaint.delay ?
100, 1000 or 10000? :)
http://kb.mozillazine.org/About:config

Comment 2

[Vincent Lefevre]

(In reply to comment #1)
> Maybe you can do something with the pref nglayout.initialpaint.delay ?
> 100, 1000 or 10000? :)

This would be even worse (the value would have to be at least 5000, but I know this would be too much for general browsing, as I'm already much annoyed by bug 18333), perhaps unless there's such an option for reloads *only*.

Comment 3

[Tyler Downer [He/Him]]

This is a mass search for bugs that are in the Firefox General component, are
UNCO, and have not been changed for 800 days and have an unspecified version. 

Reporter, can you please update to Firefox 3.6.10, create a fresh profile,
http://support.mozilla.com/en-US/kb/managing+profiles, and test again. If you
still see the bug, please update this bug. If the issue is gone, please set the
resolution to RESOLVED > WORKSFORME.

Comment 4

[Tyler Downer [He/Him]]

No reply from reporter, INCOMPLETE. Please retest with Firefox 3.6.12 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.

Comment 5

[Vincent Lefevre]

I'm reopening the bug as I could reproduce it with Firefox 3.6.14 with a new profile.

1. Open the URL:
http://www.sports.fr/football/directs/2011/ligue-1/98201/comment/lille-lyon.html
2. Scroll downwards.
3. Wait for 1 minute (the page automatically reloads every minute) or click on the Reload button.

Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-GB; rv:1.9.2.14) Gecko/20110218 Firefox/3.6.14

Comment 6

[Tyler Downer [He/Him]]

Vincent, did Firefox 4 change this in anyway?

Comment 7

[Vincent Lefevre]

I can't test Firefox 4 as it isn't available on my Mac OS X and Linux machines, but I could try the nightly, and the bug still occurs.

Mozilla/5.0 (X11; Linux x86_64; rv:6.0a1) Gecko/20110515 Firefox/6.0a1

Comment 9

[Kartikaya Gupta (email:[e-mail])]

This still happens. It affects Fennec as well where it happens more frequently (presumably because pages load more slowly).