diff --git a/README.md b/README.md
index f6e64e7..d459477 100644
--- a/README.md
+++ b/README.md
@@ -1,40 +1,48 @@
 # Slader and Quizlet Extension!
 
-- Bypass Slader/Quizlet's 5 solutions limit per month to college books and questions 
+- Bypass Slader/Quizlet's solutions limit 
+  - (Slader is move to Quizlet now.)
 - Remove the paywall about how many solutions left
 - Support Browser:
   - Chrome : 91.0.4472.124
   - Firefox : 90.0
-- Test time : 2021/07/14
+  - Safari : 14.1.1
+- Test time : 2021/08/12
 
 # WARNING:
 
 This extension logs you out of your normal quizlet account.
 
-You can disable and re-enable it by going to `chrome://extensions/` on chrome and `about:addons` in firefox.
+You can disable and re-enable it by going to `chrome://extensions/` in chrome, `about:addons` in firefox and `Safari > Preferences > Extensions` in Safari.
+
+By using this extension, you agree to the following rules:
+
+1. Educational using only.
+
+2. **Never** use for commercial.
 
 # Screenshot
 
 ## Before install
 
-![1](https://raw.githubusercontent.com/lebr0nli/slader-extension/main/sample/before1.png)
-![2](https://raw.githubusercontent.com/lebr0nli/slader-extension/main/sample/before2.png)
+![1](./sample/before1.png)
+![2](./sample/before2.png)
 ![3](./sample/quizletbefore.png)
 
 ## After install
 
-![4](https://raw.githubusercontent.com/lebr0nli/slader-extension/main/sample/after.png)
+![4](./sample/after.png)
 ![5](./sample/quizletafter.png)
 
 # Usage
 
 ## For Chrome
 
-1. Download `slader-extension.zip` from github then unzip. (Click the green "Code" button at the top of the page and click "Download ZIP")
+1. Download `Slader-Quizlet-extension.zip` from github then unzip. (Click the green "Code" button at the top of the page and click "Download ZIP") or use:
 
-or use
-
-	 git clone https://github.com/lebr0nli/slader-extension.git
+```
+git clone https://github.com/lebr0nli/Slader-Quizlet-extension.git
+```
 
 2. Open **chrome://extensions** in a new tab.
 
@@ -42,28 +50,50 @@ or use
 
 4. Click the **Load unpacked** button that just appeared.
 
-5. Select the folder **slader-limit-bypass** in **slader-extension-main** or **slader-extension**
+5. Select the folder **slader-quizlet-limit-bypass** in **Slader-Quizlet-extension-main** or **Slader-Quizlet-extension**
 
 6. Enjoy!
 
 ## For Firefox
 
-1. Download `slader-extension.zip` from github then unzip. (Click the green "Code" button at the top of the page and click "Download ZIP")
+1. Download `Slader-Quizlet-extension.zip` from github then unzip. (Click the green "Code" button at the top of the page and click "Download ZIP") or use:
 
-or use
+```
+git clone https://github.com/lebr0nli/Slader-Quizlet-extension.git
+```
 
- 	git clone https://github.com/lebr0nli/slader-extension.git
-
-2. Select the file **slader_bypass-0.10-fx.xpi** in **slader-extension-main** 
+2. Select the file **slader_bypass-0.10-fx.xpi** in **Slader-Quizlet-extension-main** 
 
 3. Drag the file into the URL bar, click "add" when prompted
 
 4. Done!
 
-# Warning
+## For Safari
 
-Educational using only.
+I didn't find a good solution to sideload a unsigned extension, if anyone has a better idea, feel free to issue or pull request.
 
-Commercial use is not allowed.
+1. Download `Slader-Quizlet-extension.zip` from github then unzip. (Click the green "Code" button at the top of the page and click "Download ZIP") or use:
 
-Upgrade your slader/quizlet account if you can afford! :)
+```
+git clone https://github.com/lebr0nli/Slader-Quizlet-extension.git
+```
+
+2. Choose **Safari** > **Preferences**, click **Advanced**, then select **"Show Develop menu in menu bar."**
+
+3. Choose **Develop** > **Allow Unsigned Extensions**
+
+4. Double click `Quizlet bypass.xcodeproj` in `Quizlet-bypass(Safari)` and press play button at the top-left to build this extension.
+
+5. Choose **Safari** > **Preferences**, click **Extensions** and enable this extension.
+
+6. Choose **Safari** > **Preferences**, click **Websites** and enable this extension to control `quizlet.com`.
+
+7. Done! (need step 3 again if you restart your Safari)
+
+> p.s. If you want to remove it, go to `~/Library/Developer/Xcode/DerivedData/` and delete the folder start with `Quizlet_bypass` and then restart your Safari.
+
+# How it works?
+
+This extension is just a quick implement to create some random IP/accounts for Slader/Quizlet.
+
+Please upgrade your slader/quizlet account if you can afford! :)
diff --git a/slader-limit-bypass/js/background.js b/slader-quizlet-limit-bypass/js/background.js
similarity index 100%
rename from slader-limit-bypass/js/background.js
rename to slader-quizlet-limit-bypass/js/background.js
diff --git a/slader-limit-bypass/js/content_script.js b/slader-quizlet-limit-bypass/js/content_script.js
similarity index 100%
rename from slader-limit-bypass/js/content_script.js
rename to slader-quizlet-limit-bypass/js/content_script.js
diff --git a/slader-limit-bypass/js/quizlet_bypass.js b/slader-quizlet-limit-bypass/js/quizlet_bypass.js
similarity index 100%
rename from slader-limit-bypass/js/quizlet_bypass.js
rename to slader-quizlet-limit-bypass/js/quizlet_bypass.js
diff --git a/slader-limit-bypass/manifest.json b/slader-quizlet-limit-bypass/manifest.json
similarity index 86%
rename from slader-limit-bypass/manifest.json
rename to slader-quizlet-limit-bypass/manifest.json
index 80deb29..fd3eeab 100644
--- a/slader-limit-bypass/manifest.json
+++ b/slader-quizlet-limit-bypass/manifest.json
@@ -1,8 +1,8 @@
 {
-  "name": "slader bypass",
+  "name": "Slader/Quizlet bypass",
   "version": "0.10",
   "author":"Alan Li & Ethan Harvey",
-  "description": "Slader/Quizlet 5 solutions limit bypass",
+  "description": "Slader/Quizlet limit bypass",
   "permissions": [
     "webRequest",
     "webRequestBlocking",