592065 - Major artifacting occurring, unknown cause

Status: RESOLVED DUPLICATE of bug 592657

(Core Graveyard :: Plug-ins, defect)

Description

[u279076]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b5pre) Gecko/20100830 Firefox/4.0b5pre

I'm seeing major artifacting occurring in the UI starting with today's nightly.  I'm not sure what is causing this and it doesn't happen all the time but it is happening frequent enough to be quite annoying.

When I scroll, the artifacts stay in place resulting in large sections of content being inaccessible.  I've seen this on a couple of different pages (www.senecac.on.ca, www.globeandmail.com).

Restarting Firefox and starting a new session usually resolves the issue but it comes back eventually.

Comment 1

[u279076]

Attachment: Screenshot: artifcating

Here is a screenshot displaying the artifacts.  Note they seem to appear in both content and chrome.

Comment 2

[u279076]

Attachment: Screenshot: tab candy

Here is another screenshot in tab-candy view.  Some of the main-browser UI is lingering.

Comment 3

[u279076]

It seems this only happens on pages with Flash content.  For example, the title bar is rendered fine when I go to youtube.com.  Once I scroll the page down so the top banner add goes behind the top browser chrome, the artifacting occurs.  Reloading the page makes it disappear.

Comment 4

[u279076]

Not sure where this belongs.  Seems to be related to Flash somehow so moving it to Plugins.