524379 - Firefox shows parts of a site in different ways (i.e. different fontsize) (happens on some but not all reloads)

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

[hbrockmann]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3

Seems for me reloading the page sometimes not all CSS commands take effect.
(In this case color and font-size)

Details, Pictures and some Poeple who could confirm this Problem
in German Language here
http://www.camp-firefox.de/forum/viewtopic.php?f=1&t=70284
http://www.camp-firefox.de/forum/viewtopic.php?f=1&t=70284&p=600987#p600987

Reproducible: Sometimes

Steps to Reproduce:
1. reload page many times (30-50)
http://wp-verbrauch.in-tostedt.de


Actual Results:  
Firefox shows parts of a side in different ways (i.e. different fontsize)

Expected Results:  
The issue needs to look at the refresh always the same

-NoScript installed (not active for this page)
-Adblock Plus installed (not active for this page)
-Internet Explorer shows same look on every refresh of the page
-some Firefox Users couldnt confirm the Problem, others could

Comment 1

[Ria Klaassen (not reading all bugmail)]

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.3a1pre) Gecko/20091024 Minefield/3.7a1pre

Confirmed; I see this with all Firefox versions I tried. Also with html5.enable to true. But Google Chrome, Opera and IE8 have no problem.

Comment 2

[hbrockmann]

in both cases of different output the html code of the page is 100% identical

Comment 3

[John Daggett (:jtd)]

Mozilla/5.0 (Windows; U; Windows NT 5.1; ja; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5

Works for me.  From the description on the forum pages it looks like in one case 12px is used, in the other case somehow *all* font-size settings are ignored and the browser default of 16px is used.

Do either of you see the problem with a clean profile (no extensions)?  What are the exact steps to reproduce, refresh the test URL 30-50 times and the problem appears?  Are you on a relatively slow/fast network connection, maybe something to do with the ads loading affects the CSS settings.

Comment 4

[hbrockmann]

-network conctions are many different between 3-16 mbit
-same problem on nearly same page without ads http://www.kramer-tostedt.de
 (screenshots available)

Comment 5

[hbrockmann]

-was confirmed with a clean profile too
http://www.camp-firefox.de/forum/viewtopic.php?f=1&t=70284&p=547069#p547069

Comment 6

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

I'm not seeing the problem.

When it happens, do you see any errors in the error console different from normal?

If not, can you try DOM Inspector, find the styles that set the font sizes / colors that are missing, and see where they've gone in a reload?  Did an entire style sheet not load?  Did part of a style sheet not load?

Comment 7

[hbrockmann]

error console shows nothing else then the page show'd "normal".

i tried dom inspector, but not really know how to use it correct to
find the wanted information.

for me it seems only some parts of the css is not loaded or used wrong,
otherwise the menu where destroyed.
it seems only to be the rcol or rcontent part.

Comment 8

[hbrockmann]

dom inspector doesnt work for css debug here, always xml error (every site!)

in firebug it seems for me that css proberties are the same in both showing cases.
but im not really good with those debugging tools.

Comment 9

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

(In reply to comment #8)
> dom inspector doesnt work for css debug here, always xml error (every site!)

I think there was a bug in the French and German localizations of the latest release.  You could try an older release or try an English build.

Comment 10

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

Also, maybe Ria (who does see the bug, per comment 1) could help here.

Comment 11

[hbrockmann]

sry, but dom inspector 2.0.3 couldnt be installed within ff 3.5.5
against the homepage description:

Version 2.0.3 — February 3, 2009 — 120 KB
Works with:
    * Firefox: 3.0a1 – 3.6b1pre

Comment 12

[Jonah Ho (AAstar)]

I was unable to reproduce this on the latest Nightly build of Firefox.

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/16.0 Firefox/16.0
Windows 7 x64

Steps Taken
1. Go to http://www.waermepumpen-verbrauchsdatenbank.de/
2. Refresh page 30 times, then stop for 10 seconds
3. Refresh page 50 times

I don't see any visible changes such as font being misplaced or resized.

Comment 13

[u279076]

Please reopen this bug if it's reproducible in the latest Nightly.