Use native GTK window controls instead of bundled firefox controls OOTB when using custom themes

[amethystgosling]

For that widget.gtk.non-native-titlebar-buttons.enabled needs to be toggled off OOTB instead of being on.

This'd make the window controls look the same as those of other apps, making Firefox look more similar alongside them.

[Jon]

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[pepperoni]

I completely agree. Having native title bar buttons by default would show Mozilla’s new attention to detail. This uniformity would enhance Firefox's appearance, making it look more polished and comparable to modern web browser UI standards.