Recently, with the Chrome v96 update, I've noticed that emojis on our platform changed to colorless glyphs. Frankly, that was frustrating, because we want to give a freedom in actions to our editors who create a unique content, thus it became a necessity to find a quick and valid solution for the raised problem. - Source: dev.to / over 2 years ago

Have tampermonkey installed (google), then go to greasyfork (website) I have the link here https://greasyfork.org/en and search up character ai, have fun :)). Source: 12 months ago

If the above mentioned URL rewriter doesn't work for you (I found it hard to use myself, and never could get the rules figured out), then you could try using https://github.com/janekptacijarabaci/greasemonkey and finding a redirect script here: https://greasyfork.org/en. Source: about 1 year ago

I was thinking more greasemonkey / userscripts. Source: about 1 year ago

Https://greasyfork.org/en is sort of what you're looking for. - Source: Hacker News / over 1 year ago

Then you should rather look for simple userscripts on for example https://greasyfork.org/en then use them or convert to uBO scriptlet syntax (which should be easy). Source: over 1 year ago