https://bugzilla.mozilla.org/show_bug.cgi?id=1410302
1410302 - about:preferences doesn't scroll with PgUp, PgDn, Up, Down, Home, and End keys
NEW (nobody) in Firefox - Settings UI. Last updated 2024-03-27.
https://newsgroup.xnview.com/viewtopic.php?t=50583
Alt+PgUp, Alt+PgDn error - XnView Software
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