1 Plus one any thing
This extension adds the ability to +1 most of the pages on the web,This extension is perfect for Google+ since it lets you share any page with your friends without waiting for the webmaster of the page to add the +1 button!
Note that this wont work on private pages, when you visit a private page and try to +1 it the extension will show a red "!" exclamatory icon instead
Surplus shows notification even if you are not in Google plus or other Google services , and on click it shows the notification in a pop up which is similar to the Google plus notification , you can post or respond within the pop up, other than that it shows Desktop notifications , have notification sound even you can switch between multiple accounts
3 +Comment toggle
4 +Photo zoom+Photo Zoom is a simple extension providing fast and simple zooming for photos within your Google+ Stream.
Just hover over the image you wish to zoom and +Photo Zoom will load the enlarged version of the picture.
this is really helpful since the loading the full size pic using Google plus take a lot of time
5 Replies and more for Google+This extension add more features to Google plus such as the ones listed below
- Reply and Reply to Author links for easy +mentions of other users
- Badges the favicon with a number when you have new messages
- Ctrl+Enter and Shift+Enter submit a comment or post
- "M" key mutes a post
- Header bar floats down as you scroll
- Adds a dropdown next to share with additional sharing options (Twitter/Facebook/Email)
6 -1 Minus One
Now plus one this ;) , If you have more extensions for Google plus do share it in comments