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Firefox Android forks running at 60 Hz
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I've noticed they stay at 120 until I open the first tab, then they're locked at 60 until I close all tabs and reopen the app.
I don't have the same issue. Fennec from F-Droid runs at 120Hz even with tabs open
The indicator does flicker between 60 and 120 while the page is loading, but it's not perceptible. However, if what I'm seeing means the FPS goes down to 60 while the app is busy, this may be some kind of performance throttling done to keep resource usage low. If you have lower end specs, this may be the explanation. I'm on a Pixel 6 Pro.
Performance is a good lead since it feels lower than 60fps and my panel can only switch between 60/120 Hz. I wonder what could cause that to happen only on the forks since the regular Firefox is buttery smooth even on complex sites.