Code Blocks is a Chrome extension that makes it easy to store short examples of code with syntax highlighting in a Google Doc.
Page Analytics (by Google)
https://chrome.google.com/webstore/detail/page-analytics-by-google/fnbdnhhicmebfgdgglcdacdapkcihcoh
BuiltWith Chrome Extension – Find out what the website you are visiting is built with using this extension
Snagit for Google Chrome
Link: Snagit for Google Chrome