Created attachment 811141 [details] firefox_on_linux_bug_transparent_combobox.html User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:24.0) Gecko/20100101 Firefox/24.0 (Beta/Release) Build ID: 20130911155223 Steps to reproduce: Linux Mint Firefox 24 Went to an internal website and saw a transparent combobox. Checked with Chrome and it worked fine. It also worked as expected in Windows with Firefox. See HTML file attached Actual results: The actual results were a transparent combobox when it should not have been transparent. Expected results: It should not have been transparent when clicking on the combobox.
The fact that it happens on Linux but not Windows suggests a graphics problem rather than a layout problem, so moving to Core::Graphics for further triage.
Is it possible to assign this bug for the upcoming Firefox 27 release?
This is still present in Firefox 29