Installed sine following the readme and it shows "Installed successfully" but I don't see the sine store anywhere. Only zen mods are visible.

[sam112358]

I have cleared startup cache and started the browser.
OS : MacOS Tahoe
Zen info : 1.16.4b (Firefox 143.0.4) (aarch64)

Following is the console logs

I would really appreciate if someone could guide me on how to resolve this.

[CosmoCreeper]

Go to about:config and set sine.is-cosine to false (add it as a boolean).