Hello, i need help. If I create shortcut, and start firefox in another profile, like this: "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -class FF2 --profile "C:\Users\mire\Desktop\TEST\Apps\Instagram" --no-remote instagram.com And if i set in "user.js" --> user_pref("taskbar.grouping.useprofile", true);. For some reason after firefox starts, or after second start, firefox icon on the taskbar turns into a private browsing icon! I tried everything to prevent this, I tried to add: user_pref("browser.privateWindowSeparation.enabled", false); user_pref("browser.privacySegmentation.windowSeparation.enabled", false); Nothing works... I checked million times that im not in private browsing, and i'm not. Then, after some tests I found that if I remove the flag: "user_pref("taskbar.grouping.useprofile", true);" from 'user.js' and 'prefs.js', and start profile again, taskbar icon becomes normal firefox icon. Is this a bug? And what should i do if i want to have separate grouping for the PROFILE2, and i don't want to have that private browsing icon? You can see in the picture what was happening...