Reproduced the issue with Firefox 124.0a1 (2024-02-13) on Windows 10x64. The animation is laggy and the browser freezes. I can no longer reproduce the freeze with Firefox 124.0b2 on Windows 10x64, macOS 13 and Ubuntu 23.1 However, the animation is not as smooth as before with Firefox 122.0a1 (2023-12-15), bug 1829026 with the same steps. Also, it looks like the browser also shows a slight delay when playing the animation on Ubuntu 23.1 and macOS 13 ARM. Should we open another issue for the remaining problem?
Bug 1880018 Comment 8 Edit History
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Reproduced the issue with Firefox 124.0a1 (2024-02-13) on Windows 10x64. The animation is laggy and the browser freezes. I can no longer reproduce the freeze with Firefox 124.0b2 on Windows 10x64, macOS 13 and Ubuntu 23.1 However, the animation is not as smooth as before bug 1829026 with the same steps. Also, it looks like the browser shows a slight delay when playing the animation on Ubuntu 23.1 and macOS 13 ARM. Should we open another issue for the remaining problem?