
Modrinth · Minecraft mod
Firmament Mod Announce Remover
Disables Firmament's ModAnnouncer feature
Quick answer
Which Firmament Mod Announce Remover release should I use?
Firmament Mod Announce Remover 1.3.0 targets 1.21.10, 1.21.11 with Fabric. It must be installed on the client. Do not install it on the dedicated server. No extra mods listed for this file.
Where it goes
Is Firmament Mod Announce Remover required on the client, server, or both?
It must be installed on the client. Do not install it on the dedicated server.
This file is marked client-only.
What else does Firmament Mod Announce Remover 1.3.0 need?
1.3.0. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
5 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Firmament Mod Announce Remover without breaking your instance.
Built for Firmament Mod Announce Remover 1.3.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.3.0. It targets 1.21.10, 1.21.11 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
It must be installed on the client. Do not install it on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.3.0. It opens that exact file at the source.
About this project
What does Firmament Mod Announce Remover add?
Firmament Mod Announce Remover
What?
Disables Firmament's Mod Announcer feature, which sends the server a list of every mod you are using. Previously also fixed log spam whenever a painting item gets rendered.
Why?
This mod was originally created as the initial implementation of Firm's packet could lead to sending a packet too large for the server to handle, and therefore forcing a client disconnect. This has now been fixed by Firmament, and the packet simply does not send if it is too large.
However, I still consider this feature to be a massive privacy breach as it provides another way to fingerprint users, and also completely useless in the first place. Hypixel is unlikely to use a random packet sent by a random mod to determine whether to ban users. They had already stopped this practice during the Forge days with the forge handshake. When they did ban for mod ids, it was incredibly easy to create a mod with a known banned mod id or change an existing mod's id to share with unsuspecting people and get them banned. For this reason, I consider this method of checking for cheaters useless at best and actively harmful at worst.
This packet is not required for any features to work, Firmament still functions as normal.
Cheating
I do not condone cheating. This mod was made well before any cheat modules existed, and my reasons for removing this check are entirely unrelated. If the only way you can have fun in a game is by cheating, it's time to find a new game :)
Project description from Modrinth.
Pick your setup
Firmament Mod Announce Remover by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.11
1 loader build1.21.10
1 loader build1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Firmament Mod Announce Remover versions and loaders
1.3.0
firmamentpacketfix-1.3.0.jar
20 Mar 2026
1.2.0
firmamentpacketfix-1.2.0.jar
31 Jan 2026
1.1.0
firmamentpacketfix-1.1.0.jar
24 Jan 2026
1.0.1
firmamentpacketfix-1.0.1.jar
24 Nov 2025
1.0.0
firmamentpacketfix-1.0.0.jar
6 Sept 2025
Looking for an older file? The official Modrinth project page is in Resources.