Hi, and thanks for your rating. I'm sorry that you are apparently having a problem with the add-on.

From what I can tell, this might be a problem with Firefox' configuration. Do you, by chance, enabled `privacy.resistFingerprinting` or have any other add-on or used some Firefox tweaking tool or similar that could have set that option?
To check that, please open a new tab and go to `about:config`. If there is a warning, accept that. Then enter `privacy.resistFingerprinting` there. If it is enabled, then please disable it by double-clicking on it.

The problem is that for privacy reasons, Firefox overrides the dark mode when that option is set, because obviously it can be read by websites and thus be one bit used for tracking purposes. This is a known issue and nothing this add-on can influence. Please have a look at https://github.com/rugk/website-dark-mode-switcher/issues/22 for more information.
Similarly this option forces the user agent to be a specific version and that might be an older Firefox version, so just ignore the version warning.

If you continue to have problems with that, it would be very nice if you could report this bug on https://github.com/rugk/awesome-emoji-picker/issues/ or the linked issue above, so we can deal with it. Thanks.

Let us know if this helped by adjusting your voting.
Apart from that, if you have any other ideas or issues, feel free to get in touch.

Best regards,
rugk