There are two primary locations:
Location A: Current User (Most common for settings)
HKEY_CURRENT_USER\Software\Mozilla\Firefox
Here you’ll find:
Location B: Local Machine (System-wide settings) file regedit ff hot
HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox
And for 64-bit Windows running 32-bit Firefox:
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Mozilla\Firefox
Location C: Uninstall/Install Data
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Mozilla Firefox*
If Firefox ignores about:config due to corporate policy, you can force GPU acceleration: There are two primary locations: Location A: Current
Effect: Forces Firefox to use your GPU for rendering, offloading the CPU and reducing heat.
This is a critical point of confusion. Unlike many legacy Windows applications (or Internet Explorer/Edge), Mozilla Firefox is a portable-friendly browser. It primarily stores its configuration in a profile folder on your hard drive (using prefs.js), not in the Windows Registry.
However, Firefox does write some keys to the Registry for integration purposes. These include: Here you’ll find:
So when you file regedit ff hot, you won’t find a direct "Temperature" slider. Instead, you will find keys that can indirectly affect performance, such as hardware acceleration policies, multi-process limitations, or background task settings.
Follow these steps to access the relevant Firefox registry entries:
There are two primary locations:
Location A: Current User (Most common for settings)
HKEY_CURRENT_USER\Software\Mozilla\Firefox
Here you’ll find:
Location B: Local Machine (System-wide settings)
HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox
And for 64-bit Windows running 32-bit Firefox:
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Mozilla\Firefox
Location C: Uninstall/Install Data
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Mozilla Firefox*
If Firefox ignores about:config due to corporate policy, you can force GPU acceleration:
Effect: Forces Firefox to use your GPU for rendering, offloading the CPU and reducing heat.
This is a critical point of confusion. Unlike many legacy Windows applications (or Internet Explorer/Edge), Mozilla Firefox is a portable-friendly browser. It primarily stores its configuration in a profile folder on your hard drive (using prefs.js), not in the Windows Registry.
However, Firefox does write some keys to the Registry for integration purposes. These include:
So when you file regedit ff hot, you won’t find a direct "Temperature" slider. Instead, you will find keys that can indirectly affect performance, such as hardware acceleration policies, multi-process limitations, or background task settings.
Follow these steps to access the relevant Firefox registry entries: