Fix missing icons in windows taskbar

I’ve found Mozilla app icons have disappeared when I open Thunderbird (email) and Firefox (web browser) in Windows 10.

The fix was quite simple in the end.

• Open the start menu programs folder

C:\ProgramData\Microsoft\Windows\Start Menu\Programs

• RH-click the application shortcut and choose Properties > Shortcut > Change Icon.

Two icons to choose from, but there can be only one that renders in the taskbar…

• Select your icon and click OK > OK

It may take a couple of goes to get this right. I found two icons for Thunderbird, the first renders as a blank document in the Taskbar, but the second displays correctly.

And if that doesn’t work…

I also tried these instructions to fix the taskbar. They didn’t work in this case, but may help you.

How To Fix Taskbar Icons Missing / Disappear In Windows 10