> No warranties or guarantees of security or updates
In general it's fine for users to fork software to scratch their own itches. But browsers are super security sensitive.
If uBlock Origin wasn't supported I would be on Iceraven, but I don't run a ton of extensions so I was willing to tolerate some inconvenience in order to be closer to the source.
The other thing is that Iceraven isn't a silver bullet, you can install any extension but if it's relying on an API that's not implemented yet it will break. Which is totally not their fault, but it gets back to -- Mozilla needs to actually implement full extension support beyond just flipping a switch on.
I'm glad Iceraven exists though :) I wouldn't not recommend them to someone who needs more extension support, it's just not right for my personal use case.