595433 - occasional ghosting of embedded frames on web pages

Status: UNCONFIRMED

(Firefox :: General, defect)

Description

[Hal]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_4; en-us) AppleWebKit/533.17.8 (KHTML, like Gecko) Version/5.0.1 Safari/533.17.8
Build Identifier: 4.0b5

I have been on a few blog pages, youtube, and just other pages in general and I have some sort of screen artifact or ghost frame that seems to scroll down with me on the page, covering the content of the web page underneath. There is no detail to the frame, or controls in the border, and the will not go away until you exit out the browser. They seem to be related to some frames on the page when it opens. 

Reproducible: Sometimes

Steps to Reproduce:
1.open a web page
2.
3.
Actual Results:  
hit or miss but has happened frequently enough in latest build that I have considered uninstalling. 


goodluck

Comment 1

[Brian Ewins]

I'm getting this too, 100% reproducible for me.

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b5) Gecko/20100101 Firefox/4.0b5

eg:
http://richardwiseman.wordpress.com/2010/09/09/two-lovely-videos/
now click the link to navigate to the previous blog entry (which contains no video) - the white blocks appear over the text.
Open a new tab, on anything eg:
http://www.sheldonbrown.com/web_sample1.html
...and the ghost is on that page too.

Now go back to the first tab, navigate forward again to the original blog entry. The blocks are gone. They are also gone in the other tab. Navigate back again, the blocks reappear.
Next, close the tab with the richardwiseman blog. The white blocks are now gone from the other tab too.
Even more annoyingly - click on the region where the videos appear in the other tab (even if the white blocks are not showing) and it seems to capture the cursor. I noticed this one trying to enter the bug - I can click in the left of this textarea and the cursor will move there and typing works; but click in this textarea over the area where the video lies in the other tab and the cursor does not move, and typed text will no longer be entered. Clicking away again recovers.

Comment 2

[David Leidig]

This happens to me as well, text entry is affected when the blocks have not yet appeared. Keyboard shortcuts for the video player (such as space for start video playback) will control the video when you click on a text area that has a video beneath it on another tab.

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5; rv:2.0b6) Gecko/20100101 Firefox/4.0b6

Comment 4

[Brian Ewins]

With the latest update this bug has morphed a bit for me. Now I can't reproduce
using the steps I described above, but if I switch theme first, then scroll
sown a page that has a playing flash video, a black area is painted in the
browser's title bar where the video passes 'under' it.

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b6) Gecko/20100101
Firefox/4.0b6
    File: Flash Player.plugin
    Version: 10.1.82.76
    Shockwave Flash 10.1 r82

There was an older flash ghosting bug - bug 277067. Unsure if this is a related regression.