For me, the best thing about Chrome is that it's arrival on the browser scene motivated Mozilla to redouble their efforts, especially in terms of performance and stability, and this has borne fruits with recent iterations of Firefox.
Firefox is more open, has new JS language features before anyone else, why would I use Chrome? :P
But, I too left firefox behind, mostly because of lack of OSX keychain integration, and I have very little hope that mozilla is going to fix an issue 11 years old anytime soon[0]
Obviously FF is far from the perfect browser, I hate that it doesn't use native ui elements on web pages(e.g., the `select` html element) and I think it's a bit more resource-hungry than Chrome.
Depends on what you measure and your usage patterns. Firefox runs circles around Chrome with regards to memory usage and features like "load tabs on demand" can further lower the general resource usage drastically.
The lack of native UI styling of 'select' elements is a disgrace though, especially on Mac. Firefox is the last browser to exhibit this and there are no sign that this will changed in the near future. :-(
Chrome's features don't constitute a superset of Firefox features and vice versa. Examples for features exclusive to Firefox:
1) Tab groups 2) Awesomebar (which works very differently than the Omnibar) 3) History sync 4) Load tabs on demand 5) Bookmark tags 6) Livemarks 7) Better resource usage (especially memory)
And I could easily add several more, both native as well as the ones added by extensions. You may not care about some or all of these features because they don't fit into your browser usage pattern, but others do. Speed is also important to me and I'm glad that Firefox gets improved with each new version currently but it's not the deciding criteria as long as it doesn't inhibit me from using the browser as I wish.
[1] https://wiki.mozilla.org/Performance/Snappy [2] https://bugzilla.mozilla.org/show_bug.cgi?id=718121
Slower for me. Hits the disk more.
> has great extensions
Not nearly enough. Not by half.
Also, there's the issue of respect: Chrome doesn't respect me nearly enough to let me configure my browser to how I want it. I did away with the speed dial 'feature' in Firefox; I can't do that in Chrome. Not possible. That's just one example of many.
Firefox respects me. Therefore, I use it.