Chrome //
Extensions 
Chrome
Web store 
Live Custom CSS,JS injector on pages
Live CSS JS/ Realtime CSS JS style will be added to the page for temprory. To test the style change. How it reflect on page reload.
JIRA Template Injector
The description field of new JIRA issues will automatically be populated with a template relevant to the issue type
eReaderIQ Injector
Injects an eReaderIQ window into Amazon Kindle pages for quickly checking Kindle price history & updating your Watch List.
Witchcraft: JS/CSS injector
Witchcraft loads custom Javascript and CSS directly from a folder in your file system. Think GreaseMon'key' for developers.
Web Injector
Inject JavaScript code into every page (e.g. to help with debugging). For example, make your own wrapper for console logging.
Advanced Page Injector Plus
Inject CSS/Html/Javascript into a page before it loads, good for adblocking and user styling.