Description of problem:
Autoscrolling does not work.
Version-Release number of selected component (if applicable):
70.0.1-4.fc31
How reproducible:
Always.
Steps to Reproduce:
1.Open Preferences.
2.Go to General -> Browsing.
3.Enable "Use autoscrolling".
4.Use Middle-click.
Actual results:
Autoscrolling does not work.
Expected results:
Autoscrolling works with Middle-click.