Since Geckodriver 0.26.0 released a couple of days ago, it supports driving Firefox on an Android phone. This is interesting for us since we then potentially have another browser to use on real devices (even though the usage is low) that can make it easies to spot regressions.

Lets install Firefox and see how it works out using Browsertime. Best case it's just some configuration issues but it could be that its more work. As a first step I'll just look into if we can get it running and not focus on video/metrics and work with WPR.