User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:188.8.131.52) Gecko/20060111 Firefox/184.108.40.206 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:220.127.116.11) Gecko/20060111 Firefox/18.104.22.168 Sites that use the window.onresize event to resize their contents can be broken when showing or hiding Firefox's toolbars. Reproducible: Always Steps to Reproduce: 1. Press Ctrl-F 2. Navigate to www.Lst.ac.uk 3. Close the find bar (or hide any other optional toolbar). Actual Results: You will see that the bottom two <div> areas are not resized to fill the empty space, wheras they are if you change the window size in some other way. Expected Results: Shouldn't window.onresize be triggered whenever the available document space changes size? Or is there a different onresize event that this website should be using instead of window.onresize?
Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a1) Gecko/20060228 Firefox/1.6a1 ID:2006022815 I see this too.
A similar bug on Linux, filed for 3.0b5: bug 429051.