diff --git a/README.md b/README.md
index c82b6ca..cca7dd7 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,12 @@
-# Firefox Gnome Theme
+# Firefox GNOME Theme
 
 ![Screenshot of the theme](screenshot.png)
 
 ## Description
 
 This is a bunch of CSS code to make Firefox 57+ look closer to GNOME's default
-theme. It styles the UI and, if you pick the dark variant, interal Firefox'
-pages like about: and view-source:. Both light and dark variants are supported.
+theme. It styles the UI and internal Firefox' pages like about: and
+view-source:. Both light and dark variants are supported.
 
 ## Installation
 
@@ -14,40 +14,65 @@ Extensions can no longer style UI elements, but we can still use good old
 `userChrome.css` and `userContent.css` files. Just drop this repo to your
 `chrome` directory:
 
-1. Go to your Firefox profile's directory.
-2. Clone this repo to the `chrome` directory:
+1. Go to your Firefox profile's directory, if it's located in the default
+location, this should work:
 
 	```sh
-	git clone 'https://github.com/kurogetsusai/firefox-gnome-theme.git' chrome
+	cd ~/.mozilla/firefox/*.default
 	```
 
-3. Enable the theme in your `userChrome.css` file. Open it with your favorite
-text editor and follow instructions to enable one of the theme variants. You can
-also enable extra features here.
+2. Create a `chrome` directory if it doesn't exist.
 
-The GTK theme variant must match the variant you picked for this Firefox
+	```sh
+	mkdir -p chrome
+	cd chrome
+	```
+
+3. Clone this repo to a subdirectory:
+
+	```sh
+	git clone https://github.com/kurogetsusai/firefox-gnome-theme.git
+	```
+
+4. Create single-line user CSS files if non-existent or empty (at least one line
+is needed for `sed`):
+
+	```sh
+	[[ -s userChrome.css ]] || echo >> userChrome.css
+	[[ -s userContent.css ]] || echo >> userContent.css
+	```
+
+5. Import this theme at the beginning of the CSS files (all `@import`s must come
+before any existing `@namespace` declarations):
+
+	```sh
+	sed -i '1s/^/@import "firefox-gnome-theme\/userChrome.css";\n/' userChrome.css
+	sed -i '1s/^/@import "firefox-gnome-theme\/userContent.css";\n/' userContent.css
+	```
+
+6. Enable the theme in the `firefox-gnome-theme/userChrome.css` file. Open it
+with a text editor and follow instructions to enable one of the theme variants.
+You can also enable extra features here. Keep in mind this file might change in
+future versions and your configuration will be lost. You can copy the `@import`s
+you want to enable to the `userChrome.css` file directly in your `chrome`
+directory if you want it to survive updates. Remember all `@import`s must be at
+the top of the file, before other statements.
+
+	The GTK theme variant must match the variant you picked for this Firefox
 theme, which means you must either enable (for the dark variant) or disable (for
-the light one) global dark theme in GNOME Tweak Tools, or alternativelly, you
+the light one) global dark theme in GNOME Tweak Tools, or alternatively, you
 can run Firefox with a specific variant without changing the global theme by
 supplying the GTK_THEME variable like this:
 
 	```sh
 	# for the dark theme
 	GTK_THEME=Adwaita:dark firefox
-
 	# for the light one
 	GTK_THEME=Adwaita:light firefox
 	```
 
-4. Optionally you can enable styling of Firefox' internal pages in your
-`userContent.css` file.
-
-You can also create `customChrome.css` and `customContent.css` files, which will
-be loaded after `userChrome.css` and `userContent.css` files. Everything you put
-in those files will survive updates, so you can use them to apply your own
-custom styles or copy the relevant `@import` lines to preserve your
-configuration. Remember all `@import`s must be at the top of the file (other
-rules are allowed below `@import` declarations).
+7. Optionally you can enable styling of Firefox' internal pages in the
+`userContent.css` file analogous to the `userChrome.css` file.
 
 You might want to adjust your default link colors so they are more visible on
 dark background, either drop the code below into your
@@ -61,11 +86,12 @@ user_pref("browser.display.background_color", "#2e3436");
 user_pref("browser.display.foreground_color", "#ccc");
 ```
 
-You can't get rid of the title bar for now (except for Fedora I think, where you
-can enable CSD in about:config), but you will be able to do it when they add
-client-side decoration support. For now you can use a GNOME extension like
-[No Title Bar](https://extensions.gnome.org/extension/1267/no-title-bar/) to
-hide it.
+You can't get rid of the title bar for now (except for Fedora, where you can
+enable CSD in about:config), but you will be able to do it in Firefox 59, when
+Firefox adds client-side decoration support. For now you can use a GNOME
+extension like
+[No Title Bar](https://extensions.gnome.org/extension/1267/no-title-bar/)
+to hide it.
 
 ## Broken stuff
 
@@ -73,13 +99,15 @@ Icons might appear black where they should be white on some systems. I have no
 idea why, but you can adjust them in the `ui/theme.css` file, look for
 `filter: invert`.
 
-I haven't finished styling the new... new tab page. I just replaced it with a
+I haven't finished styling the new tab page. I just replaced it with a
 blank page, because I don't like all that clutter anyway, but feel free to
 finish it yourself (my attempts are in the `userContent.css` file, look for
 `about:newtab`).
 
-Probably more things are broken, it looks okay for me, feel free to report
-issues here on GitHub and share your ideas if you know how to fix them.
+Feel free to report issues here on GitHub and share your ideas if you know how
+to fix them. Since I can't do everything alone, this project relies on
+contributors, many existing features were added by our contributors, so don't
+hesitate to become one of them!
 
 ## Development