Picture-in-Picture for videos does not work (at least in Firefox 75, probably since 71) with pref dom.w3c_pointer_events.enabled = false. We might be able to set it to true in legacy/trac#28729 (moved), so we should check that. But perhaps it's worth filing a bug in bugzilla in any case, since it looks like an internal Firefox UI should not be broken because of dom.w3c_pointer_events.enabled being set to false.
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@acatBugzilla 1688105 FF87+ deprecated dom.w3c_pointer_events.enabled - so no need to file up upstream bug any more
I can't see any open ticket on revisiting enabling pointer events on desktop: which would need to be done for next ESR91 based alpha. The ticket linked in OP is closed ( legacy/trac#28729 (moved) ) - unless you handle it here
@sysrqb The same bug (1688105) also removed dom.w3c_pointer_events.multiprocess.android.enabled (introduced in bugzilla 1507495. Not sure what you're doing in Fenix
@acatBugzilla 1688105 FF87+ deprecated dom.w3c_pointer_events.enabled - so no need to file up upstream bug any more
I can't see any open ticket on revisiting enabling pointer events on desktop: which would need to be done for next ESR91 based alpha. The ticket linked in OP is closed ( legacy/trac#28729 (moved) ) - unless you handle it here
@sysrqb The same bug (1688105) also removed dom.w3c_pointer_events.multiprocess.android.enabled (introduced in bugzilla 1507495. Not sure what you're doing in Fenix
Thanks @thorin. It would be nice if the bugzilla bug gave a little more
info (or context), like: why they decided this feature/functionality
doesn't deserve a pref anymore. Tor Browser disables both prefs on
Android.