I found a (not very clean) workaround based on https://github.com/SebastianSimon/firefox-selection-fix.
See https://github.com/MAccadia/firefox-selection-fix/tree/primary_select_fix
I found a (not very clean) workaround based on https:/ /github. com/SebastianSi mon/firefox- selection- fix.
See https:/ /github. com/MAccadia/ firefox- selection- fix/tree/ primary_ select_ fix