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Use Firefox on Ubuntu with touchscreen

27 January 2020

By default Firefox had pretty bad touch support for me. E.g. no scrolling or zooming. But this was easy to change. Go to about:conifg in Firefox and set dom.w3c_touch_events.enabled=1. Then test this by running the following:

env MOZ_USE_XINPUT2=1 firefox

Change this as the default when starting Firefox.

sudo sed -i "s|Exec=|Exec=env MOZ_USE_XINPUT2=1 |g" /usr/share/applications/firefox.desktop