I prefer sidebery because it's cleaner than TST OOTB

https://addons.mozilla.org/en-US/firefox/addon/sidebery/

sidebery also has very lovely tab grouping and tab sleeping (unloads the tabs from memory).

This is nice because you can take all your tabs for a research project, condense them to a group and then nap them until you come back to the project.

> tab grouping and tab sleeping

Oh yes I forgot TST doesn't have that since I haven't used it in so long. Keeping groups of unloaded tabs might not be healthy for me, enables my tab hoarding habit.

I believe the meta is to use tree style tabs

warning: is for advanced users

https://addons.mozilla.org/en-US/firefox/addon/tree-style-ta...

Using Tree Style Tabs: https://addons.mozilla.org/en-US/firefox/addon/tree-style-ta...