There are tons of addons but they are all weird. I currently have lots of pinned tabs and would like to move those to a sidebar.
Only the favicon, custom side adding, like on Brave.
Is there such a thing in Firefox?
Edit: no I dont want all Tabs on the side! Just a few pinned ones like in Brave
Sidebery has a tutorial in the README. You can set it up that the tab bar automatically hides when the Sidebery bar is open.