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My work laptop is a very fast upper end macbook and I can somewhat reliably run Firefox on that. My personal laptop is an older macbook pro retina model and whe

My work laptop is a very fast upper end macbook and I can somewhat reliably run Firefox on that. My personal laptop is an older macbook pro retina model and whenever I use firefox on that it gets incredibly slow and from time to time the computer just freezes for 20-40 seconds. So, sadly, I can't use firefox on that. At one point someone on HN posted a link to the bug report on mozilla's bug tracker about this issue with retina macbooks. Does anyone have that link? I can't find it.

arusahni 8y ago
Is this it? https://bugzilla.mozilla.org/show_bug.cgi?id=1404042 https://bugzilla.mozilla.org/show_bug.cgi?id=1404042
- mosselman 8y ago
  Yes that seems to be it! Thank you. Always good to not be alone when experiencing such problems.
isostatic 8y ago
I've got a bottom of the line 2013 macbook air. I closed everything down earlier to update to mojave, and firefox told me it would close 7 windows and 71 tabs. Never had a problem with it. My main desktop is an ubuntu 16.04 machine with 16GB of memory and I've never had a slowdown, often get upto the 100+ tab range across different windows.
- mosselman 8y ago
  The MacBook Air doesn’t have a retina screen, it appears to be related to that. I also use ff on Ubuntu without issues.
anthony_doan 8y ago
I'm currently surfing on a "MacBook Pro (Retina, 15-inch, Late 2013)". It works fine with 4 window opened (1 private, 2 with ~20 tabs, main one with at least 50 tabs). I'm also running 10+ extensions. Works pretty well for me. Sometime after awhile the video playback goes wonky though. I end up doing `sudo killall firefox`.
mistertrotsky 8y ago
I use Firefox Nightly on a MacBook (Retina) and it performs very well with WebRender on and gfx.compositor.glcontext.opaque set to TRUE. Faster than Safari even! Worse battery life though.
thinkingemote 8y ago
I have an old Thinkpad X220 and i see no slowdown with Firefox, but I do see more CPU usage in my cpu graphs compared with Chromium so I worry when I am on battery power. I'm not sure how to properly compare CPU usage to determine if I am just imagining it.

arusahni 8y ago

Is this it? https://bugzilla.mozilla.org/show_bug.cgi?id=1404042 https://bugzilla.mozilla.org/show_bug.cgi?id=1404042

mosselman 8y ago
Yes that seems to be it! Thank you. Always good to not be alone when experiencing such problems.

isostatic 8y ago

I've got a bottom of the line 2013 macbook air. I closed everything down earlier to update to mojave, and firefox told me it would close 7 windows and 71 tabs. Never had a problem with it. My main desktop is an ubuntu 16.04 machine with 16GB of memory and I've never had a slowdown, often get upto the 100+ tab range across different windows.

mosselman 8y ago
The MacBook Air doesn’t have a retina screen, it appears to be related to that. I also use ff on Ubuntu without issues.

anthony_doan 8y ago

I'm currently surfing on a "MacBook Pro (Retina, 15-inch, Late 2013)". It works fine with 4 window opened (1 private, 2 with ~20 tabs, main one with at least 50 tabs). I'm also running 10+ extensions. Works pretty well for me. Sometime after awhile the video playback goes wonky though. I end up doing `sudo killall firefox`.

mistertrotsky 8y ago

I use Firefox Nightly on a MacBook (Retina) and it performs very well with WebRender on and gfx.compositor.glcontext.opaque set to TRUE. Faster than Safari even! Worse battery life though.

thinkingemote 8y ago

I have an old Thinkpad X220 and i see no slowdown with Firefox, but I do see more CPU usage in my cpu graphs compared with Chromium so I worry when I am on battery power. I'm not sure how to properly compare CPU usage to determine if I am just imagining it.