Rated 3 out of 5 stars

First off, I can't figure out how to disable ANY add-on. Also, I now can't see the rest of the book marks that I have.
I have been using Firefox for years and I know my way around a computer somewhat and I can't figure the new version out whatsoever. Please tell me how to fix this!

This user has a previous review of this add-on.

In the list of extensions, each extension has a disable button on the right.