Neur0toxine

Firefox support

7

According to [Mozilla bugtracker](https://bugzilla.mozilla.org/show_bug.cgi?id=1527926), Firefox will have PiP soon. Nightly version [already have such feature](https://www.bleepingcomputer.com/news/software/mozilla-adding-a-picture-in-picture-mode-to-firefox/). So, it can be nice to have PiPer extension for Firefox.

Configurable stylesheets doesn't install properly

3

After installing configurable styles all elements on the page becomes transparent. Styles without configuration button works well. For example, after installing [**this**](https://userstyles.org/styles/141833/userstyles-dark-2017) stylesheet userstyles.org looks like this (you can see...