please update for firefox 57!!!!!! Rated 5 out of 5 stars

this is the best and useful addon I have for firefox and thunderbird, it is the only possibility to make the font larger so you can read the bookmarks in firefox and the inbox in thunderbird. What should I do without this addon??
Please dont let die (FF 57) this wonderful addon!

This review is for a previous version of the add-on (55.2).