Enabling Chromium Embedded Framework in Garry's Mod. 1. In your Steam games list, right click on Garry's Mod and go to properties. 2. Go to the Betas tab and click the drop down list, selecting [dev] to enable the Developer branch of Garry's Mod that currently supports CEF. You can keep the code textbox empty. Note: you can not do this while Gmod is running. 3. After this, switch to the "General" tab in the properties menu and enter the Launch Options settings. You will need to add "-chromium" to the launch options dialog. It is OK not to have the other settings in my screenshot. 4. Go to the link here: https://get.adobe.com/flashplayer/otherversions/ 5. From that link, download the PPAPI version (for Chrome/Chromium) of Flash for your operating system. Untick any boxes related to optional offers that you may see. 6. Now start Garry's Mod and you should be ready to go! No more annoying freezes that you have to refresh to fix. If for some reason something stops working because of this fix, all you need to do is opt out of the dev branch of Garry's mod to revert everything.