[Affected versions]: - Firefox 60.0, Firefox 60.0b15, Firefox 61.0a1 (2018-05-01) [Affected platforms]: - Windows 10x64, Ubuntu 16.04x64 [Steps to reproduce]: 1. Launch Firefox. 2. Go to https://www.bing.com/. 3. Select the [Outlook.com] link from the header section. 4. Press the TAB key 3 times. [Expected result]: - The active element should be the left pointing arrow from the bottom-right section of the page. [Actual result]: - The preferences list selection is displayed. The list is empty so you see a dashed line, 2px in height. See the attached screen-cast. [Regression range]: Not a regression, since it's reproducible on Firefox 4.0b9pre. Earlier versions do not display the website's affected section properly. [Additional notes]: - The issue is also reproducible if instead of steps 3+4 you press the TAB key 10 times. - The list should be skipped since it's not displayed, as default. - The issue is not reproducible on other browsers. - Issue is not present on macOS 10.12.6.
The element is #id_hbfo, and its HTML for me is: > <span id="id_hbfo" _iid="SERP.5068" class=" hpfo hb_hpqexp slide_up" aria-hidden="true" aria-haspopup="true" role="menu"> It's not clear to me why this element is focusable at the first place... Anyway, it sounds like a problem related to the focus manager, so move to DOM.
Component: Layout → DOM
Component: DOM → DOM: Core & HTML
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