Hi I noticed this because I use this extension along with several others that have the same issue in the new sidebar. I like the new sidebar, but we really need a way to hide extensions there.
If you have 5 to 7 extensions showing up as icons in the sidebar, and you’ve minimized it so only the icons are visible, it ends up being about 50% extensions and many of which you might not even need at the moment.
That’s really inconvenient, especially since the whole idea of the minimized sidebar is to save space. I hope this gets reconsidered and that an option to hide extensions in the sidebar will be added in the future.
Thanks again for the vertical tabs, hopefully Mozilla will consider this!