Please follow these instructions...
1) Enter chrome://extensions in your browser url bar and press Enter.
2) Check the box Developer mode
3) Click the Update extensions now button
4) Scroll down to make sure it worked (if you don't know what the version is supposed to be, just ignore this item)
That's it!
Click the reload button on whatever YouTube page you're on and you will have the latest version of TubeBuddy.
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Want to see it in action? Here's Hannah to show you how...