This Google Chrome extension allows you to save and manage Javascript scripts that can then be ran directly on webpages.
1.Navigate to chrome://extensions
2.Make sure Developer mode is turned on (top right corner of the screen)
3.Click "Load unpacked" and when prompted select the "ScriptManager" folder in your filesystem.
4. Click on the new folder icon in the top left of your browser
5. Click on the cog to go to the options page where you Create, view, and delete your scripts.
6. Once you have added a script, it will appear in the icon's popup menu, and you click on the script's name to run it on the current tab.
Note: The scripts will NOT work on the options page or the extensions page. Chrome does not allow for scripts to be executed on these pages.