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The environment variable here does not refers to a Firefox variable but rather to the OS environment. To test it once you could execute: GTK_USE_PORTAL=1 fire
by tlamponi 8y ago
The environment variable here does not refers to a Firefox variable but rather to the OS environment.
To test it once you could execute:
GTK_USE_PORTAL=1 firefox
If you want a more persistent solution you could add
export GTK_USE_PORTAL=1
to your .profile or /etc/profile (if you want it for all system users)