How to enable ScrollRight for a site:

GreaseMonkey:

1. Open the Addons screen from the main menu and click the UserScripts tab
   --OR--
   Click the arrow on the GreaseMonkey button and choose Manage User Scripts...
2. Find ScrollRight and click the Preferences or Options button
3. Click Add button by User Included Pages.
4. Type the URL in the textbox. You can use * as a wildcard, to capture anything. Or you can use a regex if you start and end the line with /.

TamperMonkey:

1. Click the TamperMonkey Button and Click Dashboard.
2. Click on ScrollRight, then click the Settings tab (beside the Editor tab).
3. Scroll down to User Includes, and click the Add... button.
4. Type the URL in the textbox. You can use * as a wildcard, to capture anything. Or you can use a regex if you start and end the line with /.