With the new FS Extension.
Any idea ?
Unfortunately, Remove Breakpoints isn’t available in the new Finsweet Extension — and we know that’s a pain if you relied on it. 
Here’s the context: the new extension is native to Webflow, meaning it’s built on Webflow’s official APIs. The old Chrome extension could handle things like removing breakpoints because it used lower-level browser methods, but those weren’t sustainable long-term. Now that we’re working within Webflow’s native APIs, we’re limited to what those APIs actually expose — and breakpoint removal isn’t something they currently support.
A few other features from the old extension are affected by this same limitation:
- Remove Breakpoints
- Global Custom Code Access
- CSS Styles Reorder
We’re actively in discussions with Webflow about API updates that could bring these back. No confirmed timeline yet, but it’s genuinely on our radar.
If you want to follow along on updates or pass along feedback directly, @Support-Luis or @Support-Pedro can point you in the right direction. 
you can’t remove Webflow breakpoints anymore with the new Finsweet Extension the API just doesn’t support it.
only workaround is manually resetting styles per breakpoint or rebuilding clean, since breakpoint deletion isn’t exposed in Webflow.