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How to install a User Script in Chrome
Install a user script from outside Chrome's web (app) Store.
Did you know? A user script is usually a small JavaScript program written to modify web pages. Made popular by the Firefox addon "Greasemonkey", native support was later added to Chrome. Read more about what is a user script.

Recently Chrome has made it more complex to install those hosted outside Chrome's web/app store.

Recently Chrome has made it more complex to install those hosted outside Chrome's web/app store.
OPTION ONE: Use Tampermonkey

1. Install Tampermonkey, a version of Greasemonkey for Chrome.
2. Click the link of the script that you wish to install.

This option is the most flexible and offers better support for scripts written for Greasemonkey, such as those hosted on http://userscripts-mirror.org.


OPTION TWO: Install directly   no longer works
1. Download the script
2. Open the URL: chrome://extensions/
3. Drag the script onto the page.
Install directly, version 2:
1. Download the script
2. Click on the "Customize and control" icon and go to Tools > Extensions
3. Drag the script onto the page.
NOTE: Chrome will warn you that the script can "access data on all websites". That is Chrome's generic warning for any user script. Read the code of the of the script to determine what it does.

Saftey Information about User Scripts

User scripts can do less than regular browser extensions and addons. For example they usually can not access your hard drive. However, they can access any website, capture information you enter into web pages, and impersonate you.

They are more risky than bookmarklets.

If a script is from a source that you do not trust and you don't understand the code, do not install it.

Read more about what is a user script.

UserScripts.org

For old scripts, try the archived versions at http://userscripts-mirror.org.

UserScripts.org appears to have died. For many years it was the number one place to find and share user scripts. Over time users noticed that the site was slipping into a state of disrepair. In April 2014, http://userscripts.org became seemingly permanently unavailable, however http://userscripts.org:8080 remained up for a couple of months longer. During the interim period when the site was still available via port 8080, efforts were undertaken by various groups to create last minute archives of the site. One such effort was made public at http://userscripts-mirror.org.

Despite the fall of such an important site, user scripts are still being created and shared. Many can be found in the Chome Web Store, on individual webpages, on GitHub and other code repositories, and on a few new sites competing to be the top replacement for the now defunct UserScripts.org.