finally got it working..


FrankerFaceZ is working on Twitch. However, Chrome and Firefox are very slow at approving updates you may need to switch to the user-script version of FrankerFaceZ if you are affected. To do so:

Disable the FFZ browser extension.

Ensure you have a userscript manager installed, such as Violentmonkey or Tampermonkey.

Visit FrankerFaceZ's website, and under the install button click Other Browsers, and then Userscript.

Install the userscript when your userscript manage prompts you to.

This will ensure you receive FFZ updates immediately when they're released. Your settings transfer freely between the userscript and the browser extension.

This worked for me.