Way 1: Upload With URL
- Open the Chrome Web Store on the Chrome browser, find and select the extension you want, and then copy the URL of this extension. Cookie-Editor as an example.
![](https://help.maskfog.com/wp-content/uploads/2022/10/image-16.png)
2. Paste the URL when you upload the extension in Application Center.
![](https://help.maskfog.com/wp-content/uploads/2022/10/image-17.png)
3. After successful upload, enable this extension. It will appear in every profile.
![](https://help.maskfog.com/wp-content/uploads/2022/10/image-18.png)
Way 2: Upload With package
1.Open the Chrome Web Store, download and install the extension CRX Extractor/Downloader, because we need to use it to help us download other extensions later.
Download Address: https://chrome.google.com/webstore/detail/crx-extractordownloader/ajkhmmldknmfjnmeedkbkkojgobmljda
![](https://help.maskfog.com/wp-content/uploads/2022/10/image-19.png)
2. For example, to upload the MetaMask to the Maskfog Application Center, find this extension in the Chrome App Store. Right-click and select Download CRX for this extension – Download ZIP for this extension.
![](https://help.maskfog.com/wp-content/uploads/2022/10/image-21.png)
3. Wait for some time for CRX Extractor/Downloader to download this extension and compress it to zip, then save the zip file on your computer. Before uploading, make sure that your extension name is in English only.
![](https://help.maskfog.com/wp-content/uploads/2022/10/image-23.png)
4. Upload the zip file to Application Center
![](https://help.maskfog.com/wp-content/uploads/2022/10/image-29.png)
![](https://help.maskfog.com/wp-content/uploads/2022/10/image-25.png)
5. After uploading, click the button below to enable the extension on all profiles. (Before enabling, please close all opened profiles first)
![](https://help.maskfog.com/wp-content/uploads/2022/10/image-27.png)