Concentration Mod is a lightweight mod that adds a very simple feature. When you open the game in fullscreen mode, you will not be able to open any other tabs on your computer without minimizing the game window. Even if you use keyboard shortcuts, the game will minimize before opening the new tab. The Concentration mod adds a new fullscreen mode type called “Borderless”, that allows you to open other tabs without minimizing the game. This new “Borderless” fullscreen type can be enabled/disabled in the game settings.
Features:
- Access other tabs without minimizing the game window.
- Adds a new fullscreen mode called “Borderless”.
- Enable/Disable in the game settings.
Screenshots:
Concentration Mod Download Links
For Minecraft 1.21.1, 1.21
Forge version: Download from Server 1 – Download from Server 2
Fabric version: Download from Server 1 – Download from Server 2
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.6
NeoForge version: Download from Server 1 – Download from Server 2
Fabric version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.1, 1.20
Forge/NeoForgeversion: Download from Server 1 – Download from Server 2
Fabric version: Download from Server 1 – Download from Server 2
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 177810.mcaddon
- Download size: 40 KB
- Download link checked 24 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.