I've seen several people mention this addon. Can you (or someone using it) give a reason or two to prefer it over the standard alternatives (e.g. Tree Style Tab)?
I already mentioned 'panels' and container integration.
Idk, I don't know why Tree Style Tab is any more 'standard alternative' (or certainly not that any others are, afaict TST & Sidebery are the most popular two) - they're both extremely popular (Mozilla gives 196k users of TST & 75k of Sidebery; nothing else close) and both 'Recommended' by Mozilla.
Use whatever you want, I did say more than that I just recommend using something to get vertically listed tabs. The tree-ing is a much less big deal to me tbh, though Sidebery does do that too fwiw.
I've seen several people mention this addon. Can you (or someone using it) give a reason or two to prefer it over the standard alternatives (e.g. Tree Style Tab)?