[apfsx]

Firefox extensions disabled: 16.8 +- 0.59 Brave extensions disabled: 19.0 +- 0.88

Interesting because I have only 5 extensions. The heaviest extension seems to be Dark Reader which causes over 5 point changes.

[gcp]

Yeah, Dark Reader is known to totally plummet Firefox performance.

Not sure if it's a coding issue in the Firefox version of Dark Reader, or it's hitting some slow path in Firefox itself.