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AntiFirmamentMinecraft mod for 26.1.2

Removes the dreadful packet Firmament attempts to send to servers (e.g., Hypixel), which shows your mod IDs when Fabric itself doesn't.

client onlynewest supported 26.1.2UtilityGame MechanicsLibraryOptimization
Latest version
1.0.2
Minecraft
1.21.10 to 26.1.2
Java
Java 25+
Loader
Fabric
Licence
MIT
Downloads
5.7k
Updated
3 mo ago
Available on
Modrinth

Minecraft versions

Every version AntiFirmament declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.1.2Fabric25+declared9 Apr 2026
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025

Download

From AntiFirmament’s own host. Nothing is re-hosted here.

1.0.2release22 Jun 2026

antifirmament-fabric-1.0.1-26.1.2.jar · 0.6 MB · for 26.1.2

Download latest
3d044a98c9f5…
Older versions2
  • 1.0.110 Feb 20261.21.11, 1.21.1031 KB3.8k downloads3f8a4fb7ea50…Get
  • 1.0.02 Feb 20261.21.11, 1.21.1010 KB135 downloadsd068a6071edc…Get

Frequently asked

Does AntiFirmament work on Minecraft 26.1.2?

Yes. 26.1.2 is the newest Minecraft version AntiFirmament declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does AntiFirmament support?

Everything the author has declared, from 1.21.10 up to 26.1.2. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install AntiFirmament on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does AntiFirmament support?

Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for AntiFirmament?

On the newest Minecraft version it supports, Java 25 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is AntiFirmament under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install AntiFirmament?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download AntiFirmament safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Details from Modrinth, where the author last updated it on 22 Jun 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .