Solve the problem of win10 firefox taskbar

In win10, after pinning Firefox to the taskbar and then opening Firefox, two icons will appear, which cannot be merged. The solution:

Just delete a key from the registry:

32-bit system:

HKEY_CURRENT_USER\SOFTWARE\Mozilla\Firefox

Delete the TaskBarID and re-pin it to the taskbar

 

64-bit system:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Mozilla\Firefox\

Delete the TaskBarID and re-pin it to the taskbar