Great addon, does exactly what's advertised.

This is the extension I was looking for.

I encountered a bug where some time single tap on screen would trigger backward key, I will have to refresh the webpage to stop that from happening.
update: The gesture now feels smooth as silk, thank you for your work!

does the same as the touchpad functions, which are useful on touchscreens

This add-on works wonderfully and added the much needed touchscreen swipe navigation for Firefox on Linux just like what we have with Chrome. I can now use my Surface Go in tablet mode.

Works great, feels like using Firefox for android.