[sertbdfgbnfgsd]

Maybe I'm the crazy one here, but I can't remember last time firefox speed was an issue.

You want your software to be really snappy, we all agree on that. But past some point, it's physically impossible for a human to tell the difference. I believe a human can't detect if a tab takes 10ms or 1ms to open.

Firefox has been past the point where "fast" matters for a very long time (and that's a great thing!)

[weikju]

Agreed -- however many people still remember Firefox from the days they switched to Chrome and have this perception that Firefox is slow. This blog post is probably for them, to let them know "hey we're not slow!".

[chongli]

No, it still matters at the margins. When you get into extreme situations like having too many tabs open or a website with really inefficient JavaScript, it’s really nice to have a fast browser that can deal with that. Sure, there are always ways to design software better in order to preserve responsiveness in extreme situations, but better performance never hurts!