Gmail recently released a new feature called Schedule Send that allows all APU Gmail users to schedule email to be delivered at a later time. This new built in functionality mitigates the need to continue using Right Inbox.

How to remove the Right Inbox extension in Google Chrome

1. Launch Chrome
2. Go to chrome://extensions/
3. Find the Right Inbox extension and click the Remove button
   

How to remove the Right Inbox extension in Safari (Mac)

1. Launch Safari
2. Click on Safari then Preferences
   
3. Select Extensions and find Right Inbox
4. Click the Uninstall button
   

How to remove the Right Inbox extension in FireFox

1. Click the Menu button , click Add-ons and select Extensions or Themes
2. Find Right Inbox and click the Remove button
   
3. Click Restart now if it pops up. Your tabs will be saved and restored after the restart