I don’t really understand why more people don’t use Firefox. I’ve been using it almost exclusively for probably a decade without any compatibility issues, aside from the very few sites that specifically request IE or Edge (which I usually just bypass by changing User Agent anyway).

Today “This extension is no longer supported” doesn’t mean there’s something seriously wrong with it, it means “Google doesn’t support the fact you want to use it”.

I’ll be interested to see how this affects Chrome’s market share over time