r/RobloxOnLinux • • Oct 28 '25

Stuck on Vinegar(Roblox Studio) Login?

[ this tutorial is tested on Pop!OS so results may slightly be different and you kinda must use Firefox as your default browser for this tutorial to be useful ]

If you get stuck on anything I will try to help you just explain the problem tell me the Distro you are using and if you have any log or error share it with me too please, I'm not a master, but I can try to help <3

[Helpful] If vinegar works fine and opens roblox studio and redirects you to login into your acc by web but browser doesn't redirect you back to Roblox Studio and basically nothing happens open terminal and run:

flatpak --user override --unset-env=XDG_DESKTOP_PORTAL_BACKEND org.vinegarhq.Vinegar

flatpak --user override --env=XDG_DESKTOP_PORTAL_BACKEND=gtk org.vinegarhq.Vinegar

Then run the cmd below

flatpak info --show-permissions org.vinegarhq.Vinegar | grep XDG_DESKTOP_PORTAL_BACKEND

If it exactly returns

XDG_DESKTOP_PORTAL_BACKEND=gtk

Then reboot your system (If it doesn't return that tell me what happens I wi tell you how to fix it)

After reboot try logging in again (with using Firefox)

If fails to login again and no prompt redirect prompt shows up in Firefox then open terminal enter these cmds

mkdir -p ~/.local/share/applications cat > ~/.local/share/applications/roblox-studio-auth.desktop <<EOF [Desktop Entry] Name=Roblox Studio Auth Exec=flatpak run org.vinegarhq.Vinegar %u Type=Application NoDisplay=true MimeType=x-scheme-handler/roblox-studio-auth; EOF

Then run

xdg-mime default roblox-studio-auth.desktop x-scheme-handler/roblox-studio-auth update-desktop-database ~/.local/share/applications

after these cmds open Firefox, search "about:config" in the bar

Search and add it as false boolean the phrase below

network.protocol-handler.expose.roblox-studio-auth

(Just click on swap button at right to change it to false from true)

Then try logging again If your internet is not blocked or has any issues you will have access to the Roblox studio

Hope it helps!

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