Do you know a Privacy friendly blue light filter ? Preferably a desktop app but firefox extentions are OK
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Most operating systems have one built in. Is there a feature missing from yours?
I recently switched to Linux Ubuntu, I can not find it in the preferences
Assuming you’re using the default Ubuntu (the one with Gnome), it’s under the display settings and called night light.
If you are using kde plasma
https://userbase.kde.org/Tips/Enabling_the_blue_light_filter_on_KDE_Plasma



