Created attachment 33574 [details] testcase I Steps: 1. Go to attached testcase 2. Hover your mouse over the large select box options. II Issue: The CSS pseudo-class 'hover' should still be in effect. As you hover over the box's scroll bar, the hover is still in effect. However, as soon as you hover over an option, the effect stops. The smaller select box is there merely to illustrate the effect works correctly for ones that drop down. III Other Browsers: IE7: ok FF3: ok IV Nightly tested: 46256 Bug in Chromium : http://code.google.com/p/chromium/issues/detail?id=14633
*** Bug 39501 has been marked as a duplicate of this bug. ***
Safari, Chrome, and Firefox show the same rendering behavior for this test case. I do not believe any further compatibility issue remains.