[Affected versions]: Latest Nightly 63.0a1 (2018-08-06) Latest Firefox 62.0b14 (64-bit) Latest Firefox Release 61.0.1 (64-bit) [Affected Platforms]: Windows 10 x64 Windows 7 x64 Ubuntu 16.04 x64 Mac OS 10.13 [Steps to reproduce]: 1. Launch Firefox and go to "https://www.twitch.tv/directory/game/Fortnite" 2. Press TAB key multiple times to highlight different elements on the site 3. Click on a blank space to remove the highlighter 4. Click on "Videos", "Clips" "Live Channels" etc [Expected result]: The elements should be correctly selected without any highlighter. [Actual result]: The TAB key highlighter will be displayed for every selection using the mouse cursor. [Notes]: After refreshing the page the issue will no longer occur. It can be reproduced on any site where TAB key is used for selection.

This is working as intended.

Dao, could you please elaborate why this issue seems invalid to you? In the comment 0 scenario, the element border persists even though it shouldn't. As a side note, this behavior is not reproducible on Chrome, Safari or IE. Changing the bug title for a better understanding of the issue.

It was designed this way in bug 418521.