Update this may no longer work.
Check the topic below and watch the video do this without the plugin.
You Can Try The Plugin But Most Say It Doesn’t Work
Chrome Plugin No Longer Working This Is The Workaround
1 Get Code to do it manually here.
2 To Go To Your Channel Subscriptions
Go here: https://www.youtube.com/feed/channels
Paste the code from 1 into the console. Watch the video for a better explanation.