The back button in Firefox works fine on sites that don't fuck with the back button. So...no, I don't think we can reasonably blame Firefox. Firefox has a reas

The back button in Firefox works fine on sites that don't fuck with the back button. So...no, I don't think we can reasonably blame Firefox. Firefox has a reasonable implementation of the History API, so it isn't that Firefox doesn't support some feature that a single page app would need in order to make stuff like URLs work right. And, it's not like Firefox is some obscure browser with 1% of market share.