302773 2025-11-19 01:43:33 -0800 "mos" does not make Safari scrolling smooth with Logitech mouse, unlike all other apps 2025-11-26 01:44:10 -0800 1 1 1 Unclassified WebKit Scrolling Safari 26 Mac (Apple Silicon) macOS 15 REOPENED https://bugs.webkit.org/show_bug.cgi?id=70198 InRadar P2 Normal --- 1 askanurag24 webkit-unassigned ap simon.fraser webkit-bug-importer oldest_to_newest 2159845 0 askanurag24 2025-11-19 01:43:33 -0800 Why safari not support smooth scrolling, when using mos; all app give smooth scroll, but on safari the text keep jittering, it seems to a webkit issue 2159915 1 ap 2025-11-19 08:27:52 -0800 Thank you for the report. Please add more detailed steps to reproduce. I don't know what "mos" is, however Safari's scrolling is always exceptionally smooth for me. 2159917 2 askanurag24 2025-11-19 08:31:03 -0800 have you ever used logitech mouse or third party mouse? Mac not provide smooth scrolling for that so people have to install again third party app mos for smooth scrolling which work great for all apps of mac even chrome is buttery smooth, but why not safari; has safari 26.1 been drinking any juice? 2159923 3 ap 2025-11-19 08:49:01 -0800 I've not used a Logitech mouse, no. Thank you for the clarification. "mos" would be https://mos.caldis.me then. Given that this is about mos not doing what it's supposed to do, it would be appropriate to have mos developers perform at least initial analysis. But I think that it is fair to track this as a WebKit bug, too. 2161411 4 webkit-bug-importer 2025-11-26 01:44:10 -0800 <rdar://problem/165433913>