topic Re: Can't disable hardware acceleration in Discussions

Can't disable hardware acceleration

ChristosP — Tue, 25 Mar 2025 09:57:21 GMT

Going to settings and disabling hardware acceleration (cause still firefox has issues with amd drivers)

After starting up Firefox again hardware acceleration is still enabled.

Re: Can't disable hardware acceleration

Agentvirtuel — Tue, 25 Mar 2025 11:02:03 GMT

Hello

Firefox's performance settings
https://support.mozilla.org/en-US/kb/performance-settings

If you wish to try policies.json
Firefox policies https://mozilla.github.io/policy-templates
HardwareAcceleration https://mozilla.github.io/policy-templates/#hardwareacceleration

The Enterprise Policy Generator https://addons.mozilla.org/firefox/addon/enterprise-policy-generator helps to create the configuration file

Disable hardware acceleration

{ "policies": { "HardwareAcceleration": false } }

Copy/paste the above code (example) into Notepad
Save
Type: All files
policies.json

Then
Create the distribution folder
Move policies.json to the distribution folder
Move the distribution folder to the folder where Firefox is installed

Use the Troubleshooting Information page to help fix Firefox issues
https://support.mozilla.org/en-US/kb/use-troubleshooting-information-page-fix-firefox

Application Binary: Shows where Firefox is installed.

Restart Firefox

Your browser is managed by your organization, that's normal

Information page

Enterprise Policies: This shows you if your browser is being managed by Windows Group Policy or a policies.json file. If enterprise policies are managing Firefox, clicking on Active will show you a list of the policies that are currently active on Firefox.

Re: Can't disable hardware acceleration

Agentvirtuel — Tue, 25 Mar 2025 11:59:34 GMT

To complement
HardwareAcceleration
Preferences Affected: layers.acceleration.disabled

Configuration Editor for Firefox https://support.mozilla.org/en-US/kb/about-config-editor-firefox
Enter a search term layers.acceleration.disabled

Use hardware acceleration when available [box checked] corresponds to layers.acceleration.disabled value false.
Use hardware acceleration when available [box unchecked] corresponds to layers.acceleration.disabled value true.

Enterprise Policies
Preferences Affected: layers.acceleration.disabled

Re: Can't disable hardware acceleration

ChristosP — Tue, 25 Mar 2025 15:35:18 GMT

Well even when I try all that everything is back as it was after restarting FF

Re: Can't disable hardware acceleration

ChristosP — Tue, 25 Mar 2025 15:46:04 GMT

Actually whatever change I make in about:config is reset after restarting FF

Re: Can't disable hardware acceleration

Agentvirtuel — Tue, 25 Mar 2025 15:58:16 GMT

If you wish to try/test create a new profile (to see if)
about:profiles https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles
Your current profile, this is the profile you're currently using; it can't be deleted (1)
Create a new profil (2) simply enter the name you want and click Next, then restart Firefox

(2) this is your new profile and don't remove your profile (1)

To return to your profile (1), Set as default profile, then restart Firefox

Re: Can't disable hardware acceleration

Agentvirtuel — Tue, 25 Mar 2025 16:09:35 GMT

About Enterprise Policies
Affected all profiles, then, remove your distribution folder and restart Firefox.

Re: Can't disable hardware acceleration

siffemcon — Tue, 25 Mar 2025 23:45:50 GMT

Are you using a user.js file?

Re: Can't disable hardware acceleration

Agentvirtuel — Wed, 26 Mar 2025 05:25:15 GMT

Hello

How to fix preferences that won't save https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Note: There's a Refresh Firefox button in the Firefox Troubleshoot Mode window, if you can't start Firefox normally. You can also do a manual refresh by creating a new profile and transferring your important data to the new profile.

No feedback from ChristosP

Other

Make a test both in action at the same time.

user.js

user_pref("layers.acceleration.disabled", false);

policies.json

{ "policies": { "HardwareAcceleration": false } }

What is the result