User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0a1) Gecko/20110427 Firefox/6.0a1 Build Identifier: 32bit nightly Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0a1) Gecko/20110427 Firefox/6.0a1 built from http://hg.mozilla.org/mozilla-central/rev/c833fb1623ca On opening the page, in the LHS column, should be a clickable list of sports. This does not appear. This menu should change when options such as "All Sports" are clicked on. However, it does not. This is a recent failure in the nightly builds (with last two weeks). It does not occur with Chrome's current dev build. Reproducible: Always Steps to Reproduce: 1. Open link 2. Observe lack of menu of sports in LHS column 3. Click on options in LHS column such as "All Sports" and observe that nothing changes. Actual Results: http://i.imgur.com/ZCBZb.png Expected Results: http://i.imgur.com/SYexT.png The test was also repeated with a new, default profile.

Setting to New..Confirmed with latest hourly build of Nightly.

Regression range is between the 210411 and 270411 nightlies.

Regression window(m-c hourly): Works: http://hg.mozilla.org/mozilla-central/rev/1853104e4525 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0a1) Gecko/20110417 Firefox/6.0a1 ID:20110417030531 Fails: http://hg.mozilla.org/mozilla-central/rev/c551b62cf2e8 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0a1) Gecko/20110416 Firefox/6.0a1 ID:20110417022149 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=1853104e4525&tochange=c551b62cf2e8 This site uses "document.height" in http://cache.site.sports.betfair.com/10.0.11.9/frontpage/Menu.js However it was removed by Bug 585877. So, I think this is TE.

I confirmed in local build, C-set c551b62cf2e8 triggered the problem.

I've submitted a comment. They claim that > While we cannot guarantee a response, we can assure you that the report will > be read and investigated.

Any luck with evangelism here? I've emailed them but got no response.

I haven't got a reply either. Maybe we'll have more luck once this change is in Aurora/Beta.

Hmm, no changes from betfair despite the release of FF5. Perhaps contact from the moz team would convince them to change?

ping Site still doesn't function properly in FF.

LHS Menu seems to work in today's (respun) nightly.

Looking at <http://cache.site.sports.betfair.com/10.0.11.13/frontpage/Menu.js>, they now feature test document.height.