Keyboard short cut for Jump to Next Topic not always obeyed

Contribute Bug
2

One possible scenario, which happened here on Discourse Meta (and replicated elsewhere):

  • Give Discoure focus
    (I run all my Discourses in a single browser window and switch between the respective tabs using Crtl-Down)

  • New is highlighted with (in this case) 1 new topic.
    There’s the “See 1 new topic” message

  • g, j
    No change

  • g,n then g,j
    No change!

  • g,u g,n

  • g,j
    Correctly displays the new topic.

Looks like when the tab become current it does not always receive keyboard focus.

Environment

macOS 12.5.1 (Monterery with the recent security patch but the problem pre-dates that)
Firefox 103.0.2 with bith uBlock Origin and Ghostery running (and will not ever be turned off)