Hi there! Just letting you know we've updated the version of CEF we ship with GModCEFCodecFix to CEF 136!
You don't have to re-download the tool, but you do have to re-run it to get the latest version of CEF!
You may also have to verify integrity for GMod first for it to work.
Minimum supported version of macOS is now 11 Big Sur
CEF has increased the minimum supported version of macOS, so we have as well. If you're on an older version of macOS, it's time to update!
If you're on macOS 11 Big Sur or later, and GMod is crashing after running the tool:
Open Terminal.app and run this command (assuming GMod is installed in its default path):
There's a bug with the current version of the tool where sometimes the patched version of GMod stops being "executable". We're working to fix it ASAP!
Improvements to compatibility for macOS
With this update, we had to create a new launcher executable for GMod, which solves some compatibility issues since GMod is shipping with an out of date Xcode SDK (pre-11.0)!
Minimum supported version of Linuxwill soon be is now Ubuntu 22.04
Ubuntu 20.04 will be End-of-Life in a few days, and as such, the CEF team (and ourselves) are increasing the minimum supported version to 22.04.
If you're running a Debian-based distro, I would also expect for the minimum supported version of that to go from 10 Buster to 11 Bullseye.
Developers: Debug symbols coming soon
We will soon be publishing the Breakpad debug symbols we generate as part of the build process for CEF and gmod-html. If you're a developer and want to diagnose CEF/gmod-html crashes, this may be helpful to you!
Rust tool rewrite coming soon!
We've been hard at work on a rewrite of the GModCEFCodecFix tool in Rust, which we're calling **GModPatchTool**.
The initial release will bring:
- Improved download/patch performance
- Better handling of upstream GMod updates (no more constant "failed to match the Original Checksum"!)
- GUI
- No more antivirus false-positives
We do have some ideas for new features in the future, but in either case, keep an eye out for the release announcement!
You can always grab the tool here:
github.com
You can always follow the install guide here:
www.solsticegamestudios.com
If you have any thoughts about this update, please let us know in our Discord's #cefcodecfix channel!
Special Thanks to Swamp Servers for sponsoring this update!
Enjoy, and thanks for your support!
You don't have to re-download the tool, but you do have to re-run it to get the latest version of CEF!
You may also have to verify integrity for GMod first for it to work.
Minimum supported version of macOS is now 11 Big Sur
CEF has increased the minimum supported version of macOS, so we have as well. If you're on an older version of macOS, it's time to update!
If you're on macOS 11 Big Sur or later, and GMod is crashing after running the tool:
Open Terminal.app and run this command (assuming GMod is installed in its default path):
Bash:
chmod +x $HOME/Library/Application\ Support/Steam/steamapps/common/GarrysMod/GarrysMod_Signed.app/Contents/MacOS/gmod && echo "success"
There's a bug with the current version of the tool where sometimes the patched version of GMod stops being "executable". We're working to fix it ASAP!
Improvements to compatibility for macOS
With this update, we had to create a new launcher executable for GMod, which solves some compatibility issues since GMod is shipping with an out of date Xcode SDK (pre-11.0)!
Minimum supported version of Linux
Ubuntu 20.04 will be End-of-Life in a few days, and as such, the CEF team (and ourselves) are increasing the minimum supported version to 22.04.
If you're running a Debian-based distro, I would also expect for the minimum supported version of that to go from 10 Buster to 11 Bullseye.
Developers: Debug symbols coming soon
We will soon be publishing the Breakpad debug symbols we generate as part of the build process for CEF and gmod-html. If you're a developer and want to diagnose CEF/gmod-html crashes, this may be helpful to you!
Rust tool rewrite coming soon!
We've been hard at work on a rewrite of the GModCEFCodecFix tool in Rust, which we're calling **GModPatchTool**.
The initial release will bring:
- Improved download/patch performance
- Better handling of upstream GMod updates (no more constant "failed to match the Original Checksum"!)
- GUI
- No more antivirus false-positives
We do have some ideas for new features in the future, but in either case, keep an eye out for the release announcement!
You can always grab the tool here:
Releases · solsticegamestudios/GModCEFCodecFix
🛠 Automatic Patching/Updating of GMod CEF. Also fixes macOS/Linux launch issues. And missing main menu issues. - solsticegamestudios/GModCEFCodecFix
You can always follow the install guide here:

Fix Media | Solstice Game Studios
Guide for installing x86-64 and GModCEFCodecFix for Garry's Mod.

If you have any thoughts about this update, please let us know in our Discord's #cefcodecfix channel!

Enjoy, and thanks for your support!

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