[tor-talk] TBB uses orange Firefox icon in Linux panel

[Joe Btfsplk]

In Mint 18.1, TBB 6.5.1 was installed to /home/user/torbrowser/. Now 
updated to 6.5.2 - still same issue.
I only have one TBB launcher (icon) - on the desktop (nowhere else) & it 
uses the correct green TBB globe icon.
When TBB is running, the app icon on  Mint's panel is the orange / blue 
Fx icon.  Any other TBB window I open (bookmarks, NoScript options) - 
also use the orange Fx icon in the panel.

Confusing when TBB & Firefox are both running.

Not sure when it happened - when 1st installed TBB in Mint, it showed 
correct icon on the panel.
At some point - but before any TBB update, the  panel icon switched.

I can probably hack the right icon - to the location that  Linux pulls 
the icon for the panel (if  it's different location than 
start-tor-browser.desktop.
Anyone know where Linux gets the panel icon for TBB?

In the start-tor-browser.desktop file, it shows the icon 
"mozicon128.png" - which should be correct .
For installed programs, I believe Linux pulls program panel icons from 
the <program name>.desktop file, under "icon=...."

Any idea why this icon switch happened?