I’ve made some adjustments to Follower Checker:

• A much faster loading time
• A message box that pops up when Follower Checker can’t fetch any pages (that’s a Tumblr related problem btw.) warning you that the results might be unreliable.

You should be able to get the new version in a few hours, but if you don’t want to wait:

1. Click on the X icon
2. Click on Manage Extensions
3. Select Follower Checker
4. Click Re-install / Manually Update This Extension

I am working on making it faster, and update the UI so you can click on the blog names.