Scrolling through Firefox tabs is inconsistent

[ImSapphire]

Description

Trying to scroll through Firefox tabs, whether horizontal or vertical, usually will not scroll or will only scroll slightly before stopping.

System Info

Linux Distribution: NixOS 25.11-pre (Xantusia)

Desktop Environment: KDE Plasma 6.4.0

VR Runtime:

• Monado/WiVRn
• SteamVR/ALVR

[galister]

Is Firefox running under WayVR or KDE?

[ImSapphire]

Is Firefox running under WayVR or KDE?

KDE

[galister]

Can't seem to reproduce. Firefox is in wayland mode, right? Is this a new issue or have you seen this before?

[ImSapphire]

Yes, it's running in Wayland mode. It's been happening for a while. The scrolling issues only happen when scrolling through the tab bar, scrolling through page contents works fine.