Sidebery
Firefox extension for managing tabs as vertical tree-style lists, panels, and containers.
Liked for tree-style vertical tabs in Firefox123, tab-organizing panels and saved tab trees45, and a cleaner UI with saner defaults than Tree Style Tab.67 The caveats are needing custom Firefox CSS, which occasionally breaks8, and a suspected memory leak.9
Why people recommend it
Tree-style tabs · 3
Commenters rely on it for nested vertical tabs and would not give that up.
“Give Sidebery a try. The king of all tree-style tab browsers and the #1 reason I won't move away from Firefox.”
“I wouldn't want to replace my Sidebery vertical tabs with this setup”
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“I use the extension 'Tree Style Tab', with some settings changed, or Sidebery.”
Tab organization · 3
Panels and tab save and restore with the tree structure preserved help organize many tabs.
“Sidebery's panels (if you don't mind vertical tabs)”
“Sidebery can do the 80% of TST that matters, with a better UI and UX and saner defaults.”
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“Sidebery, Tab Wrangler and the new Agents window”
Simpler than TST · 2
Covers the parts of Tree Style Tab that matter, with a better UI and saner defaults.
“Sidebery can do the 80% of TST that matters, with a better UI and UX and saner defaults.”
“Give Sidebery a try. The king of all tree-style tab browsers and the #1 reason I won't move away from Firefox.”
Firefox anchor · 1
One commenter calls it the main reason they won't leave Firefox.
“Give Sidebery a try. The king of all tree-style tab browsers and the #1 reason I won't move away from Firefox.”
Caveats and dissent
CSS tweaks needed · 1
Hiding the native tab bar takes custom Firefox CSS that can occasionally break, though it is usually quick to fix.
“it's pretty rare for it to break. It actually broke a few days ago, I fixed it in a few minutes”
Memory leaks · 1
One user suspects severe memory leaks but is not sure Sidebery is the cause.
“Sidebery can do the 80% of TST that matters, with a better UI and UX and saner defaults.”
Vertical tabs only · 1
Its panels suit people who are fine with vertical tabs.
“Sidebery's panels (if you don't mind vertical tabs)”
Often compared with
Who recommends it in their own words
Threads where it came up
- A farewell to Arc browser 2 mentions
- The new Firefox design is here 1 mention
- Hang on to Your Firefox 1 mention
- Show HN: I was tired of opening 2 tabs for every HN link, so I made a userscript 1 mention
- Firefox Containers Preview 1 mention
- Ask HN: How do you manage too many open tabs? 1 mention
Data: sidebery.json. Quotes are verbatim; the verdict and theme labels are written by a model from these comments, and every clause links to its sources.
All comments 9
“it's pretty rare for it to break. It actually broke a few days ago, I fixed it in a few minutes”
“Sidebery can do the 80% of TST that matters, with a better UI and UX and saner defaults.”
“Maybe because I have Sidebery?”
“Sidebery, Tab Wrangler and the new Agents window”
“I wouldn't want to replace my Sidebery vertical tabs with this setup”
“Sidebery's panels (if you don't mind vertical tabs)”
“I use the extension 'Tree Style Tab', with some settings changed, or Sidebery.”
“Give Sidebery a try. The king of all tree-style tab browsers and the #1 reason I won't move away from Firefox.”
“dark reader, vimium, sideberry”