Enable User Scripts
SnapMonkey uses the User Scripts API to run your scripts. On Chromium-based browsers (Chrome, Edge), you need to enable this manually. Firefox works out of the box.
Google Chrome
Chrome 138 and newer
Recommended — no Developer Mode needed.
Open the extensions page
Type chrome://extensions in the address bar and press Enter.
Open SnapMonkey details
Find SnapMonkey in the list and click Details.
Enable "Allow User Scripts"
Scroll down and turn on the Allow User Scripts toggle.
Restart the browser
Close and reopen Chrome, or toggle the extension off and on again.
Chrome 137 and older
Requires Developer Mode.
Open the extensions page
Type chrome://extensions in the address bar.
Enable Developer Mode
Turn on the Developer mode toggle in the top-right corner of the page.
Restart the browser
Close and reopen Chrome for the change to take effect.
Microsoft Edge
Edge 138 and newer
Recommended — no Developer Mode needed.
Open the extensions page
Type edge://extensions in the address bar and press Enter.
Open SnapMonkey details
Find SnapMonkey and click Details.
Enable "Allow User Scripts"
Turn on the Allow User Scripts toggle.
Restart the browser
Close and reopen Edge, or toggle the extension off and on.
Edge 137 and older
Requires Developer Mode.
Open the extensions page
Type edge://extensions in the address bar.
Enable Developer Mode
Turn on the Developer mode toggle at the bottom-left of the page.
Restart the browser
Close and reopen Edge for the change to take effect.
Mozilla Firefox
No setup required
SnapMonkey works out of the box on Firefox. Scripts run via content scripts in the MAIN world, so no additional permissions or settings are needed. Just install the extension and you're ready to go.
Troubleshooting
Scripts still not running after enabling?
Make sure to restart your browser after enabling User Scripts or Developer Mode. You can also try toggling the SnapMonkey extension off and on in the extensions page.
Don't see the "Allow User Scripts" toggle?
This toggle was introduced in Chrome/Edge 138. If you're on an older version, use the Developer Mode method instead. Check your browser version in Settings → About.
Is Developer Mode safe?
Yes. Developer Mode simply allows extensions to use advanced APIs like User Scripts. It does not affect your browser's security. Chrome may show an occasional reminder that it's enabled.