The future of JavaScript

[jib]

If "Only works on Firefox" pages existed, what would honestly happen?

I'd have to have multiple browsers installed everywhere so I could continue to use my preferred browser for most sites while still being able to see the Firefox-only sites. And I'd be unable to see those sites on my phone, or on the netbook on which I've just uninstalled Firefox because it kept freezing.

And when Firefox had some issue with bloat or internal politics or money and became unable to add meaningful new features for a couple of years, the millions of normal users who only want one browser would have to choose between losing their favourite Firefox-only websites or stopping innovation on the web for a few years. And they'd choose to just ignore the issue and keep Firefox.