Closed Bug 410480 Opened 14 years ago Closed 14 years ago

Site VERY slow when Backgroud's fixed


(Firefox :: General, defect)

Not set





(Reporter: whitewolf_fox, Unassigned)




User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20071204 Ubuntu/7.10 (gutsy) Firefox/
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20071204 Ubuntu/7.10 (gutsy) Firefox/

When visiting a site where the Background is fixed (HTML Code example: <body background="myimage.gif" bgproperties="fixed">) FireFox shows this site very slow! When you turn the mousewheel once, Firefox keeps scroling for about ten seconds.

This only happens when using Firefox under Linux! Windows Version does fine.

You can see this for example @

This isn't related to the Hardware - Quad Core Processors with latest Graphiccards and Drivers have this Problem as slow ones have.

It happens on all tested Distributions, too. (Tested: Gentoo, Suse, Debian, Kubuntu).

Reproducible: Always

Steps to Reproduce:
1. Visit a Site where the Background Image is fixed (ex.
2. Do this under Linux.
3. Scroll the Page
Actual Results:  
The site scrolls awfull slow

Expected Results:  
The site should scroll on recent hardware more fluid and under Linux eaqual to Windows.

I don't know what more to say.
bug 90198 ?
No, I don't think so. If it would be the display Driver, Konqueror and other browsers wouldn't behave fine using the same environment.

Maybe, using a different display driver is a workarround for a problem Firefox seems to have under Linux, but you can't say there is no need for fixing faultily code, because there's a workarround.

Further, in the bug report you pointed to, it's just a guess that it is *maybe* a graphic driver issue, only assumed because the failure didn't show using a different driver.

Since other Applications don't have any Problem with the same environment, I think that the problem's at Firefox's side. Can you exactly point to an error in the Mesa driver or such? If so, I can create a bug report in their Bugtracker. But if not, this Bug can't only become closed without any action.
This looks like bug 90198 too me as well. Duping.
Closed: 14 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 90198
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