[Affected versions]: Nightly 55.0a1 [Affected platforms]: Platforms: Windows 10 x 64, Ubuntu 16.10 and Mac OS X 10.12 [Steps to reproduce]: 1. Launch Firefox. 2. Start typing in the location bar (e.g cnn.com). *Make sure to access 2 or more pages of same domain [Expected result]: The autocomplete drop-down and all the FAVICONS are correctly displayed with matching results for: - first suggestion to visit a website - web pages from your browsing history - open tabs - sync'ed web pages - pages you've bookmarked or tagged - Popular search suggestions from the default search engine [Actual result]: Missing favicon from the first suggestion to visit a website

note that it's not given that if a sub page has an icon, we have an icon for the root domain. This is one of the cases where even if potentially should have the icon, we don't have it. The code is working as expected, but not handling this case. In this case we do have an icon for www.emag.ro, but not for emag.ro (there's an immediate redirect). The icon is defined as https://s0emagst.akamaized.net/layout/ro/favicon2.ico rather than being directly under the root, that's unfortunate. We can maybe look at ways to associate icons to fixed (no schema and no wwww) urls or better handling of redirects.