Bug 41394: Expose privacy.prioritizeonions.enabled to Android.
privacy.prioritizeonions.enabled
is the preference that tells whether Tor Browser should automatically go to Onion sites if the server sends the Onion-Location
header.
This isn't the complete implementation of the feature, as we're not showing the pill, but at least it's a first step towards it.
GeckoView/Firefox/tor-browser part of #41394 (closed).
Also, it makes mTorSecurityLevel
respect the 100 columns limit.