Created attachment 603654 [details] sample html Build Identifier: http://hg.mozilla.org/mozilla-central/rev/7d0d1108a14e Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20120306 Firefox/13.0a1 ID:20120306031101 I encounter a problem when I test Bug 731516. -moz-column-fill: balance; does not work sometimes. This happens on Windows7 and Ubuntu10.40. Reproducible: Always Steps to Reproduce #1: 1. Start Minefield with new profile 2. Open Error console(Ctrl+Shift+j) 3. Evaluate top.opener.resizeTo(1250,950); in Error Console 4. Open sample html --- last column does not seem to balance 5. Evaluate top.opener.resizeTo(850,950); top.opener.resizeTo(1250,950); in Error Console. --- last column does not seem to balance 6. Resize browser width a little by dragging browsr border --- last column seems to balance now Actual Results: @Step 4, 5. last column does not seem to balance Expected Results: @Step 4, 5. last column should be balance Regression window(m-i), Works: http://hg.mozilla.org/mozilla-central/rev/0b4c58200e3a Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0a1) Gecko/20120117 Firefox/12.0a1 ID:20120117042508 Fails: http://hg.mozilla.org/mozilla-central/rev/ff1bedd7d463 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0a1) Gecko/20120117 Firefox/12.0a1 ID:20120117072408 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=0b4c58200e3a&tochange=ff1bedd7d463 Regression window(m-i), Works: http://hg.mozilla.org/integration/mozilla-inbound/rev/7ea3311b5e6c Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0a1) Gecko/20120116 Firefox/12.0a1 ID:20120116145408 Fails: http://hg.mozilla.org/integration/mozilla-inbound/rev/3077b729dfd5 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0a1) Gecko/20120116 Firefox/12.0a1 ID:20120116153908 Pushlog: http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=7ea3311b5e6c&tochange=3077b729dfd5 First bad changset: 7f8cf8e934a5 Benjamin Stover — Bug 665597 - Include margin calculations in FinishAndStoreOverflow. part=1/5 r=roc
Seems to work for me in a current Nightly on Linux64, possibly because of the wallpaper in bug 750293 to not include the margin in scrollable overflow for now. I suspect this problem will resurface once we fix that bug properly. Marking dependent for now. Still, I don't see why column balancing would be affected exactly.
WFM on Firefox30