Have the same issue.
Device information
Samsung Galaxy S8+ (SM-G955F)
Android 9
Fenix Version: 1.0.1921 (Build #11431806 68.0-20190520141152)
This was working for me on yesterday's nightly - I just updated to the one from today and it no longer works.
Has Fenix switched to using Beta GeckoView? If yes, you'll need bug 1540065 fixed.
About page work will come later
Why is this closed? 1.0.1925 it still doesn't work
It used to work if preview....
Shouldn't this stay open until about:config is restored?
This is expected behavior from GeckoView. Fenix does not control access to it. When Fenix nightly is released it will have access to about:config
for users that have that requirement.
Most helpful comment
Why is this closed? 1.0.1925 it still doesn't work
It used to work if preview....