When will i be able to use this addon in firefox 57?

We will release supporting update next week. Approx. Wednesday. 

Thanks for the quick answer.

don't hold your breathe.  I asked them a while ago and it was meant to be released last week.  They seem to lie about its release.   have a look around firefox addon's there is a better extension to this

which one would that be in your opinion? Because I didn't find a better one.

have a look at Group Speed Dial, the developer is very fast to release updates and take suggestions on what to do.  

Hello

We release version for Firefox 57 yesterday.

Hi! I can't find the Firefox 57 ready version. Where is it?

I cannot find it in addons search of firefox 57

when they actually do release it, instead of lie you will find it here https://addons.mozilla.org/en-US/firefox/addon/fvd-speed-dial/  previous versions are here https://addons.mozilla.org/en-US/firefox/addon/fvd-speed-dial/versions/

You're advising people to downgrade just because this add-on is not working? You can't be serious...

Thank you for the new release. So far, it is working fine! :)