What's the word with Firefox performance? My company's app is critically slow in JUST Firefox. It's an Ember app, but we use D3 and Immutable.js. We aren't doing anything weird AFAIK
What has profiling turned up? Because in my experience, Firefox is faster on the apps I work on for Javascript performance, so I'm really curious what sort of performance profile your app has.
I've noticed that SVG performance in Firefox is about 10x slower than Chrome -- is that what d3 is using?
Yes, D3 uses SVG
My company's app is slowest in Firefox too. Most noticeably its the CSS3 transitions that are slow and chunky compared to all the other main browsers. It doesn't really affect the usability too much, but it still annoys me that I can't get the transitions to be nice and smooth like they are in Chrome or IE.