[woumn]

Out of curiosity, were these high CPU usages on pages with any sort of video playing (culprits for me were Twitch or any live stream)? I was also having these issues, and I want to use Firefox, but the performance in the past was just too difficult.

[txcwpalpha]

I had the same issues and avoided FF 57+ because of it. I just tried FF 61 and my results were mixed. Twitch and Youtube still made my CPU temps spike a little bit. It seems worse than Chrome but better than FF 57.

Google Maps, unfortunately, still made my CPU temp spike 30C+ as soon as I opened it. I use Maps a lot, so this is still a deal breaker for me.

[kup0]

Glad it's not just me. All of those really seem to stress Firefox out on my iMac. Chrome is far more efficient with something like Twitch.

Interesting thing I've noticed: If you don't use chat much and just want the video, try using Twitch's "pop-out" player that opens in its own window- for me this uses far less CPU (even in Chrome)

Chrome's "switch to fullscreen" transition on twitch for me is super laggy though, and I haven't been able to solve that one (Firefox switches to fullscreen smoothly).

[woumn]

Yea, most of my browser time spent during free time is strictly on Twitch/Youtube/Netflix. Until these see improvements, then I won't make the switch.

[tostr]

I only use firefox (for privacy reasons). But the macbook-burning-a-hole-in-my-pants behaviour that firefox creates on these sites has led me to using mpv with youtube-dl to watch most of youtube and all of twitch. If you have both installed you can just do a 'mpv https://www.twitch.tv/username' and it will work quite nicely. You might need to set up mpv to get the best quality, I think putting 'ytdl-format=bestvideo+bestaudio/best' in ~/.config/mpv/mpv.conf is sufficient. HTH.

[Royalaid]

I am also in this camp and want to say that twitch especially is just horrible for performance

[woumn]

Which is so surprising to me because it's using the HTML5 video player and toggling around with hardware acceleration does nothing to fix the issue. Perhaps it's the integrated chat + any of the add ones that Twitch has written for the videos?

[kup0]

I have noticed the pop-out player seems far more efficient, which leads me to think the chat and other things going on around the video might be the culprit

[Klover]

Unrelated, but what do people do on twitch? I worry about getting out of touch with my children.

[1011_1101]

In addition to FreeFulls comment, there are also talkshows/(video)podcasts. It's basically the main broadcasting platform for gamers and tech people.

[FreeFull]

Twitch is mostly people streaming video of themselves playing games, but there are also some programmers that stream as they write software.

[daveslash]

Video has been a big culprit for me - in both FireFox and Chrome. I've actually taken to using Microsoft Edge when I plan to play video.

[woumn]

I use Opera as my personal browser and it handles video pretty well. It's running Chromium under the hood, and I don't think any major improvements have been made for video in Chromium or in any of the standards like HTML5 or flash. I see on par performance to stock Chrome.

[ktosobcy]

I would lean towards "yes". Mostly problematic pages: YouTube and Twilio dashboard.