version 4.1.5 doesn't work

Latest update (4.1.6) fixes some issues (mainly fonts not being applied) yet introduces a major deal breaking one: It almost makes Firefox entirely unusable. Each page/tab takes roughly 80 seconds to load and then crash.

Everytime Firefox updates, this add-on loads some ridiculous page. Uninstall.

If you code in English you can at least make the app setting in it as well.