McMouser
by ViRb3
McMouser is a client-side mod that fixes several mouse input bugs on macOS, including Shift + Scroll and the side buttons on older versions.
What it does
On macOS, the mod corrects mouse behavior that the game gets wrong on Apple hardware. For game versions 1.20.2 and later, Shift + Scroll is made to work, so horizontal scrolling in menus and hotbars responds as expected. For older game versions, the mouse side buttons are also handled correctly. A third change disables the emulation that turns Ctrl + Left Click into a right click, so that combination behaves as a plain left click.
The mod covers 43 release versions across Fabric, Forge, NeoForge and Legacy Fabric, spanning 1.7.10 – 26.2. Builds exist for both arm64 (M1) and amd64 (x64, Intel) Macs. Only the player's own client needs the mod, since it changes input handling on the machine running the game and nothing on a server. It is released under the MIT License and the source code is public, with an issue tracker for reports.
Key features
Scrolling in menus and hotbars
Lets Shift + Scroll register on macOS, so horizontal scrolling in menus and hotbars responds as expected.
Mouse side buttons
Makes the mouse side buttons respond in the older game versions the mod supports.
Ctrl + Left Click handling
Turns off the Ctrl + Left Click to right click emulation that macOS mice otherwise trigger.
Compatibility
Latest build for each game version and loader.
26.x4 of 4 versions with builds
1.21.x12 of 12 versions with builds
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
1.17.x2 of 2 versions with builds
1.16.x6 of 6 versions with builds
1.12.x1 of 1 version with builds
1.10.x1 of 1 version with builds
1.8.x1 of 1 version with builds
1.7.x1 of 1 version with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Mac players on older versions
Players on macOS who play 1.7.10 or 1.8.9 can use the side button fix in those versions.
Mac players on newer versions
Players on macOS who use recent game versions can rely on the Shift + Scroll fix.
Who it’s for: Players who run Minecraft Java Edition on a Mac and notice the input problems the mod addresses. It is not needed on other operating systems.
How it compares
EmuNO is a Fabric client mod for 1.19 – 1.20.6, released under the MIT License and open source. Shift-Scroll Fix for macOS is also a Fabric client mod, open source under the MIT License and published for 1.14 – 26.2, so it covers the Shift + Scroll problem alone. McMouser instead combines several macOS mouse fixes across more loaders and versions.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| McMouser | Fabric, Forge, NeoForge and Legacy Fabric | 1.7.10 – 26.2 | Client-side only | 2026-07-22 |
| EmuNO | Fabric | 1.19 – 1.20.6 | Client-side only | 2023-10-06 |
| Shift-Scroll Fix for macOS | Fabric | 1.14 – 26.2 | Client-side only | 2024-06-19 |
Questions
Does McMouser need to be installed on the server?
Which loaders does McMouser support?
Does McMouser work on Windows?
In the catalog
McMouser is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 13,894 mods support Minecraft 26.2.
Similar mods
What the author says
Install this mod and you can now play the game like everyone else. Seriously, it's this simple. Both arm64 (M1) and amd64 (x64, Intel) are supported.
Official listing
- Modrinth page
- modrinth.com/mod/mcmouser
- Owner
- ViRb3
- Published
- 2022-06-07
- Updated on Modrinth
- 2026-07-22
- Facts verified
- 2026-10-15