Something my default browser Chrome doesn't have is a cool clip-path editor. Something Firefox does come with, and it can be super helpful to guide you through making cool shapes with clip-path CSS.
The tool can be used to create new clip-paths from scratch or modify existing ones.
It looks like this:
Firefox clip-path editor permalink
To find the clip-path editor we simply have to open the developer tools:
Then you can inspect an element that has a clip-path and click the little square image. This will highlight the clipping points on your element.
Firefox adding a new clip-path permalink
The editor can not only edit existing clip-paths but also create ones from scratch which can be helpful!
To do so, click the element and add the clip-path code to it.
As you can see it can be super useful to generate or modify clip-path.
Let's hope Chrome decides to build this in soon!