[buu700]

I've been using FF57 on OS X since its release, and it's been great. Two issues have proven particularly difficult to get used to, however, and I'm surprised they aren't talked about more:

1. Video performance. Even something as simple as opening a video in reddit spikes my CPU to 100%, and before reluctantly installing Adblock Plus I ran into multiple kernel panics from opening articles on mainstream news sites and blogs.

2. Pinch-to-zoom isn't supported (closest alternative I could find is some about:config settings to make the pinch gesture equivalent to cmd++/-, which isn't useful).

I'm still using Firefox, and there's a lot that I like about it more than Chrome, but I'm seriously considering switching back because of those and some other minor issues.

[lukik]

I thought I was the only one with an issue with Firefox57. Got a Macbook Pro 16 GB, 3.1 Ghz Core i7, MacOSX Sierra (10.12.6). The CPU goes wild during a search on Google Maps and also on certain pages of forbes.com. On forbes I've disabled the Ublock origin coz they politely asked me to.

At one point the whole browser crashed. So right now got Chrome and FF open and am switching depending on the site. Might just end up back in Chrome if this isn't resolved.

[greenhouse_gas]

>I ran into multiple kernel panics

Is it that easy to panic the macOS kernel?

[x0x0]

Not generally, but if firefox is using gpu compositing, graphics drivers are not osx' strong point.

[buu700]

Yep, apparently. (Technically not macOS, but OS X, since I haven't upgraded from El Capitan just yet.) I'd never had an issue with frequent kernel panics before, so I'm not sure what could be up with videos in Firefox.