I had never used Waterfox, but I installed it just now, to see why it doesn’t work. Latest Waterfox is apparently based on Firefox 102, which doesn’t support Manifest v3 extensions (and Lemmy Go is one of those). I tried to see if supporting v3 and v2 was feasible, but it’s just too many changes even for a relatively small extension like this one. The changes themselves aren’t too big a deal, but it would mean maintaining and testing two very different versions of the extension (which I already have to do for Firefox vs Chrome, but right now they are almost identical). I’d rather keep the project as simple as possible for now.
I expect Waterfox G6 (which is supposed to release in September) to support Manifest v3 extensions, so maybe we just need to wait a bit.
Sure you might have a lower number of cars total, but you’ll also have way more cars on the road, making the traffic problem even worse (because you can now have more cars than people). I’m guessing we’ll be seeing legislation that disallows empty cars driving around in big cities.