When going to an iTunes album list nothing is showing up in the list part. This works fine in 3.6. Overriding the user-agent string seems to make no difference. turning hardware acceleration off makes no noticeable difference.

Confimred broken, on Linux trunk build: Mozilla/5.0 (X11; Linux x86_64; rv:2.0b7pre) Gecko/20100914 Firefox/4.0b7pre & working on a 3.6 nightly Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.2.9pre) Gecko/20100726 Namoroka/3.6.9pre

This regressed sometime between b2 & b5: Mozilla/5.0 (X11; Linux i686 (x86_64); rv:2.0b2) Gecko/20100720 Firefox/4.0b2 Mozilla/5.0 (X11; Linux i686 on x86_64; rv:2.0b5) Gecko/20100101 Firefox/4.0b5 Adding regressionwindow-wanted keyword to get a more targeted range.

Regression range: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=9a623cc1c5e7&tochange=4a6ee9e82945

Interesting: 1. view source and copy it 2. save it to new html file 3. open html file Result: List is visible

That usually means the error is with some resource (probably an @import'ed stylesheet) that's specified with a relative URL.

Actually, it looks like all the stylesheets are specified with relative URLs (in <link> elements in the HTML). So comment 4 isn't particularly surprising -- it just confirms that CSS is involved here.

DOM inspector says the computed style of the span two levels up from trackname text (e.g. "The Radiance") has a computed-style height of 0 (vs a width of 77.5px).

Disabling of XUL is in the regression range, that might be the cause.

It is indeed. This stylesheet: http://itunes.apple.com/stylesheets/ellipsis.css applies an XBL binding from this XML doc: http://itunes.apple.com/stylesheets/ellipsis.xml which uses XUL.

The binding applied is: <binding id="ellipsis"> <content> <xul:window> <xul:description crop="end" xbl:inherits="value=xbl:text"><children/> </xul:description> </xul:window> </content> </binding>

So the bug here (if there's a bug) is that we're modifying the style based on a "-moz-binding" style-declaration that points to no-longer-allowed-on-the-web-XUL. Presumably we'd rather just ignore that -moz-binding declaration altogether? (or have that visual effect?)