I recently switched to Firefox on Linux after 6-7 years of Chrome and I do use Windows and Mac laptop too.
1. On Linux - Firefox feels much more snappier than Chrome. Specically on Fedora, Chrome as a input lag which is non-existant in Firefox.
2. On Windows and Mac - Chrome is either on-par or feels snappier. I use either browser on these on two platforms.
3. On Android (galaxy-s8+), Firefox is fine but it integrates poorly with rest of the OS. Youtube links don't open in youtube app, searching for locations is bit of pain because Chrome produces Google maps hyperlinks.
I am still sticking to firefox though, because my main computer is Linux and Firefox is just to much better on Linux (lately).
Point 3 is by design. An Android icon will appear in the address bar if a native app is available. A tap on it will delegate the current URL to the app.
On Linux, Firefox can now run natively on Wayland (you have to manually enable it) while Chromium still can't (but the support is being added). The responsiveness difference is massive
I'm going to be honest I've pretty much never understood the appeal of Chrome over Firefox aside from it running separate tabs in separate processes, but that stopped being a distinction forever ago. I find the Firefox UI better and performance to be equivalent in most cases, and in all the ones where it isn't Firefox was better.
And I have a really hard time understanding where the OP is coming from saying Chrome > FF ;)
It is odd; I don't dispute that Firefox evidently has some performance issues for some people – there are enough reports from people on varied enough hardware that I don't doubt the authenticity of what people are reporting.
But personally, for me Firefox is noticeably faster than Chrome, and I know I'm definitely not the only one.
For reference: I run Windows 10 (currently 1803) on i7-7700K/32GB with typically 20-30 tabs across multiple windows; Firefox RAM consumption can be up to 4GB after a whole day's use like that. I never find the browser slows down at all, and is always immediately snappy and responsive... whereas Chrome, in a way which is hard to quantify or describe, does feel as though it's a few milliseconds behind me sometimes.
I also find the same on my truly atrocious m3/4GB Surface though (massively regret that one, "should be alright for what I need" I thought as I reached the checkout, should have known better). Chrome quickly kills the Surface, Firefox manages to keep going far longer...
So in conclusion... I don't dispute that some people find Firefox to be slower, but I know for sure that isn't true of everyone. I have no complaints whatsoever about Firefox performance and have been using it daily for 18+ months (switched from Vivaldi... now there's a browser which has performance issues, for me at least...)
I have a really hard time understanding where this commenter is coming from saying FF > Chrome. Have not heard anyone else with that opinion.