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Anecdotally I have the opposite experience. On my 2 computers (MBP/Win10 Desktop) Chrome starts up near instantly and Firefox has a noticeable delay. I just tri

Anecdotally I have the opposite experience. On my 2 computers (MBP/Win10 Desktop) Chrome starts up near instantly and Firefox has a noticeable delay. I just tried it and it took about 5 seconds to load. Not that this is really a deal breaker anyway. On my MBP it also makes the fans spin up.

mikepurvis 8y ago
Same here. Every few months when Firefox is in the news, I give it a try again, and I keep wanting to like it, but everything just seems slightly laggy compared with Chrome on my 2014 MBP.
AnthonyMouse 8y ago
> On my 2 computers (MBP/Win10 Desktop) Chrome starts up near instantly and Firefox has a noticeable delay. You may be experiencing OS caching. If you normally use Chrome, Chrome is already cached in memory by the OS and will open faster than something you haven't started recently. > On my MBP it also makes the fans spin up. I've noticed that Chrome tends not to do this while still being slower. This may be related to the way it uses more processes, which consequently requires more resources per operation (and thereby higher visible latency) but splits the load better between cores so that no individual one gets hot enough to require additional cooling. In theory this could be "better" if the browser actually needed to use 8+ cores for some reason, but in general if that is happening it is some kind of anomaly or defect (like some adspam mining Bitcoin in javascript) rather than any normal behavior. And Firefox does use other threads/processes for most of the few things that actually benefit from it.
berkut 8y ago
Exactly the same with me: I've been trying to use Firefox over the past month on a MBP, but Chrome is definitely faster (both UI-wise and seemingly with connections/requests - maybe Chrome is pre-empting some things?), and for me Firefox demonstrably uses more CPU across multiple cores, so laptop temp is noticeably hotter for the same sites, and fans spin a lot more, and battery life is worse.

mikepurvis 8y ago

Same here. Every few months when Firefox is in the news, I give it a try again, and I keep wanting to like it, but everything just seems slightly laggy compared with Chrome on my 2014 MBP.

AnthonyMouse 8y ago

> On my 2 computers (MBP/Win10 Desktop) Chrome starts up near instantly and Firefox has a noticeable delay. You may be experiencing OS caching. If you normally use Chrome, Chrome is already cached in memory by the OS and will open faster than something you haven't started recently. > On my MBP it also makes the fans spin up. I've noticed that Chrome tends not to do this while still being slower. This may be related to the way it uses more processes, which consequently requires more resources per operation (and thereby higher visible latency) but splits the load better between cores so that no individual one gets hot enough to require additional cooling. In theory this could be "better" if the browser actually needed to use 8+ cores for some reason, but in general if that is happening it is some kind of anomaly or defect (like some adspam mining Bitcoin in javascript) rather than any normal behavior. And Firefox does use other threads/processes for most of the few things that actually benefit from it.

berkut 8y ago

Exactly the same with me: I've been trying to use Firefox over the past month on a MBP, but Chrome is definitely faster (both UI-wise and seemingly with connections/requests - maybe Chrome is pre-empting some things?), and for me Firefox demonstrably uses more CPU across multiple cores, so laptop temp is noticeably hotter for the same sites, and fans spin a lot more, and battery life is worse.