Activate themes at custom times

[willsilvah]

The cool part about the Vivaldi browser is that it has themes scheduled at a custom time.
Could Mozilla Firefox have this functionality to choose which themes users install to be activated at a time, I wish this option existed

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.

[Anonymous]

• https://addons.mozilla.org/en-US/firefox/addon/gradientus/
• https://addons.mozilla.org/en-US/firefox/addon/automatic-dark/