The addon appears disabled (greyed out) for me on Firefox, so there's no customization available. But it does appear to be working.

Comment pagination (?p=2) is broken in firefox only.
Band-aid userscript fix: https://gist.github.com/Onurtag/9877ada3641c64bc84c47171a374adc1

Nice suite but doesn't work well with paginated threads

Inability to disable certain features renders this addon unusable. Forced smooth scrolling is just bad.

I'm a big fan of HN's classic, no-frills, design. Did not think it could be improved but I was wrong. The UI is eye-pleasing, the additional tweaks empower the end-user.

All of this is accomplished without any apparent loss of performance. Nice job, dev! Looking forward to updates.

Tight Code.