You can download a userscript here: http://tiny.cc/4chanSearchEngine Follow me on twitter: http://twitter.com/4chanScripts
You can Follow the below Step By Step procedure to install the 4chan Search Engine Chrome Extension to your Chrome Web browser.
It is the 4chan Search Engine Chrome extension download link you can download and install Chrome Browser.
4chan X is a script that adds various features to anonymous imageboards.
Integrating the Live and Archived Web Viewing Experience Using Memento
auto expand image on 4chan
Cross-browser userscript for maximum lurking on 4chan.
Enables names on 4chan's forced anon boards. Requires 4chan X.
Context menu item for linking to a particular element on a page.