I think it's better than a plugin because it's more convenient. I also think Chrome is the best browser (try it!) Here are the extensions I have been using in Chrome (I use a Chromebook):
AccessToGo (Fastest Free RDP Client) 18.104.22.168
The fastest free remote desktop / RDP client app for Google Chrome and Chromebooks
The most popular Chrome extension, with over 15 million users! Blocks ads all over the web.
Chrome Remote Desktop 36.0.1985.63
Access other computers or allow another user to access your computer securely over the Internet.
Google +1 Button 22.214.171.1245
+1 and share a web page, anywhere you go on the web.
Google Docs 0.7
Create and edit documents
Google Tasks (by Google) 1.0
Official Chrome Extension for Google Tasks
Google+ Photos 1.300.1
Upload and share photos from Chrome
gUnify Click to Dial 2014.620.1625.1
gUnify - Free Broadsoft Click to Call
LastPass: Free Password Manager 3.1.43
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
Office Editing for Docs, Sheets, and Slides 37.108.1712.612
View and Edit Word, Excel and PowerPoint files with Docs, Sheets, and Slides
Pushbullet makes it easy to send push notifications of links, notes, and more to your Android devices or to friends.
Replies and more for Google+ 2.29
Adds reply and reply-to-author buttons to Google+ comments and a number of other enhancements.
All-in-one tool for sharing your browser window and taking screenshots
Smart Clipboard 1.0
'Store and Search' - Stores multiple content copied from web and then allows to preview, copy or run a search on those saved texts
Synergyse Training for Google Apps™ 1.1.17
Synergyse provides interactive, in-application training for Google Apps™.
A simple, free and visual conferencing tool. UberConference is conference calls done right.