I’m at my wits’ end with this. Firefox keeps forcing a system-synced theme at launch, and it flat-out refuses to respect the settings I’ve configured — both in about:conf… (閱讀更多)
I’m at my wits’ end with this. Firefox keeps forcing a system-synced theme at launch, and it flat-out refuses to respect the settings I’ve configured — both in about:config and via a custom user.js file.
Here’s what I’ve tried:
• Set layout.css.prefers-color-scheme.content-override to 0 in about:config → it reverts back to 2 after every restart.
• Created a user.js with user_pref("layout.css.prefers-color-scheme.content-override", 0); → completely ignored.
• Disabled all sync options, including themes.
• Verified that no active studies are interfering.
• Double-checked that I’m not syncing across devices.
• Tried applying a specific theme and setting it manually — still overridden at launch.
No matter what I do, Firefox insists on syncing the theme to the system’s dark/light setting. I want my browser theme independent from the OS — period.
Is there a deeper setting I’m missing? A hidden override? Some service that’s reapplying the system setting post-launch? This feels like Firefox is actively fighting me — and it's infuriating.
Would appreciate any insight or workaround. I just want full manual control over my theme. Why is that so hard?