Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Using GTK+ 2.x and GTK+ 3 in the same process is not supported . . .

  • 1 resposta
  • 1 has this problem
  • 3 views
  • Last reply by cor-el

Albretch
Albretch
more options

I had been using firefox just fine, until I started to get the error message: 

   $ ./firefox -safe-mode &
   [3] 4499

   $ 
   (firefox:4499): Gtk-WARNING **: GTK+ module libgail.so cannot be loaded.
   GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
   close failed in file object destructor:
   sys.excepthook is missing
   lost sys.stderr

   [3]+  Exit 1                  ./firefox -safe-mode
   $ 

How should I troubleshoot such error?

lbrtchx
I had been using firefox just fine, until I started to get the error message: $ ./firefox -safe-mode & [3] 4499 $ (firefox:4499): Gtk-WARNING **: GTK+ module libgail.so cannot be loaded. GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported. close failed in file object destructor: sys.excepthook is missing lost sys.stderr [3]+ Exit 1 ./firefox -safe-mode $ How should I troubleshoot such error? lbrtchx

All Replies (1)

cor-el
cor-el
  • Moderator
more options

It is likely that you have an old version of libgail.so that is part of GTK+ 2. You will have to check your software update to see if you can install a GTK+ 3 version.