diff --git a/README.md b/README.md
new file mode 100644
index 0000000..90fd73d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,25 @@
+# ![](res/shellfox-38.png) Shellfox
+
+[Shellfox](https://hak.xwx.moe/jadedctrl/shellfox) is a simple add-on for [Firefox](https://firefox.com) that allows you to run shell commands at the click of a button.
+
+
+
+
+## Installation
+Shellfox uses a native program in order to run commands; installing only the add-on isn’t enough. Currently, the native program has only been tested on GNU/Linux, though it is likely to work on BSDs, and potentially macOS.
+
+First, download the repository, either [as a ZIP](https://hak.xwx.moe/jadedctrl/shellfox/archive/master.zip) or with `$ git clone https://hak.xwx.moe/jadedctrl/shellfox`.
+
+Then, open a terminal and use the Makefile like so:
+
+```
+$ sudo make native-install
+```
+
+After that, you can install the add-on just fine!
+
+
+## Source code
+https://hak.xwx.moe/jadedctrl/shellfox
+Author is Jaidyn Ann,
+License is the [GNU GPLv3](LICENSE).
diff --git a/res/screenshot-youtube.png b/res/screenshot-youtube.png
new file mode 100644
index 0000000..0274532
Binary files /dev/null and b/res/screenshot-youtube.png differ