I bet you're right. For me on Linux with Firefox as my main driver: Chromium startup to empty page: 7 seconds. Firefox startup to page populated with tabs: 3 s

I bet you're right. For me on Linux with Firefox as my main driver: Chromium startup to empty page: 7 seconds. Firefox startup to page populated with tabs: 3 seconds. It's worse though - since I don't often reboot and I have Firefox running almost all the time the effective start up time for Firefox for me might as well be zero. Perhaps oddly, I've never perceived Firefox as slow - but I'd be the first to admit that I use it only for rather mundane purposes, so maybe there are use cases where it would be deficient.