User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 Creative ZENcast v2.01.01 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.4pre) Gecko/20090915 Thunderbird/3.0b4 When viewing a newsfeed as a webpage, that has 'advertisements' that appear to be Flash content, Thunderbird doesn't render them correctly. The images end up overlaying over each other and in some cases over the text of the article. The above URL provides an example of such a feed. mailnews.message_display.allow.plugins has been set to true - but this has made no difference. (Don't know if this is the same problem as Bug 518298) Reproducible: Always Steps to Reproduce: 1.Subscribe to the feed above 2.View an article, as a webpage 3.View the same article in Firefox 4.See the difference in how the article is rendered. This was certainly happening on earlier beta builds of TB3, but I can't remember if it was a problem in TB2.