Modern Chrome Web Extension and Firefox Browser Addon to easily Patch and Play ROMs Online via the smwc.world site.
All Chromium Based Browsers can install the extension from the Chrome Web Store.
- Patch or Play ROM's from the Popup
- Patch or Play ROM's by Right-clicking Links
Please submit a Feature Request for new features.
For any issues, bugs or concerns; please Open an Issue.
You can pin the Addon by clicking the Puzzle Piece, find the SMWC Web Extension icon, then;
Chrome, click the Pin icon.
Firefox, click the Settings Wheel and Pin to Toolbar.
For help using the web extension, utilize any these resources:
- Q&A Discussion: https://github.com/cssnr/smwc-web-extension/discussions/categories/q-a
- Request a Feature: https://github.com/cssnr/smwc-web-extension/discussions/categories/feature-requests
If you are experiencing an issue/bug or getting unexpected results, use:
- Report an Issue: https://github.com/cssnr/smwc-web-extension/issues
- Chat with us on Discord: https://discord.gg/6pzXJE5
- Provide General Feedback: https://cssnr.github.io/feedback
Logs can be found inspecting the page (Ctrl+Shift+I), clicking on the Console, and; Firefox: toggling Debug logs, Chrome: toggling Verbose from levels dropdown.
To support this project, see the Contributing section at the bottom.
Quick Start
First, clone (or download) this repository and change into the directory.
Second, install the dependencies:
npm installFinally, to run Chrome or Firefox with web-ext, run one of the following:
npm run chrome
npm run firefoxAdditionally, to Load Unpacked/Temporary Add-on make a manifest.json and run from the src folder, run one of the following:
npm run manifest:chrome
npm run manifest:firefoxChrome: https://developer.chrome.com/docs/extensions/get-started/tutorial/hello-world#load-unpacked
Firefox: https://extensionworkshop.com/documentation/develop/temporary-installation-in-firefox/
For more information on web-ext, read this documentation.
To pass additional arguments to an npm run command, use --.
Example: npm run chrome -- --chromium-binary=...
Install the requirements and copy libraries into the src/dist directory by running npm install.
See gulpfile.js for more information on postinstall.
npm installTo create a .zip archive of the src directory for the desired browser run one of the following:
npm run build
npm run build:chrome
npm run build:firefoxFor more information on building, see the scripts section in the package.json file.
- Build or Download a Release.
- Unzip the archive, place the folder where it must remain and note its location for later.
- Open Chrome, click the 3 dotsin the top right, clickExtensions, clickManage Extensions.
- In the top right, click Developer Modethen on the top left clickLoad unpacked.
- Navigate to the folder you extracted in step #3 then click Select Folder.
- Build or Download a Release.
- Unzip the archive, place the folder where it must remain and note its location for later.
- Go to about:debugging#/runtime/this-firefoxand clickLoad Temporary Add-on...
- Navigate to the folder you extracted earlier, select manifest.jsonthen clickSelect File.
- Open about:configsearch forextensions.webextensions.keepStorageOnUninstalland set totrue.
If you need to test a restart, you must pack the addon. This only works in ESR, Development, or Nightly. You may also use an Unbranded Build: https://wiki.mozilla.org/Add-ons/Extension_Signing#Unbranded_Builds
- Run npm run build:firefoxthen useweb-ext-artifacts/{name}-firefox-{version}.zip.
- Open about:configsearch forxpinstall.signatures.requiredand set tofalse.
- Open about:addonsand drag the zip file to the page or choose Install from File from the Settings wheel.
Please consider making a donation to support the development of this project and additional open source projects.
You can also give a 5-star rating on Google or Mozilla and star this project on GitHub.
Additionally, you can star or provide a 5-star rating on other Web Extensions I have created and published:
- Link Extractor
- Open Links in New Tab
- Auto Auth
- Cache Cleaner
- HLS Video Downloader
- Obtainium Extension
- SMWC Web Extension
- PlayDrift Extension
- ASN Plus
- Aviation Tools
- Text Formatter
For a full list of current projects visit: https://cssnr.github.io/






