Tumblr Savior is a free browser extension created and maintained by Bjorn Stromberg to improve his experience on the Tumblr dashboard. He thought you might also find it useful and decided to share it with you.
This extension is open source and all source code can be found at https://github.com/bjornstar/Tumblr-Savior.
If you'd like to show your appreciation, send a little love his way at paypal.me/bjornstar
Disclaimer: Tumblr Savior is neither affiliated with nor supported by Tumblr in any way.