What a tab session manager actually does
A tab session manager does one core job: it records the state of your Chrome tabs and windows so you can return to that state later. The "state" usually means:
- Every URL open in every window.
- Window boundaries (which tabs were in which window).
- Tab order, in most tools.
- Pinned tabs, in some tools.
- Tab group names and colors, in tab-group-aware tools only.
A good session manager protects you from the three main failure modes:
- You accidentally close everything.
- Chrome crashes or updates without offering to restore.
- You reset your profile or move to a new machine and need the old workspace back.
The main session manager options in Chrome
Session Buddy
The oldest and most widely used Chrome session manager. Session Buddy stores sessions as named collections of windows and tabs, with a two-pane dedicated-tab UI rather than a popup. You can export sessions as URL lists and search across saved sessions. The catch: it does not preserve Chrome tab groups. Sessions restore as flat walls of loose tabs.
Tab Session Manager (by sienori)
Open source and actively maintained. The standout feature is configurable auto-save — it takes a snapshot every few minutes, so you always have a recent backup without remembering to trigger it manually. Also works on Firefox. Tab group support exists but requires a companion extension and lags behind Chrome's native feature updates. The UI is basic but functional.
TabGroup Vault
Built specifically for Chrome's native tab groups. Snapshots capture the full group structure (names, colors, tab order, pinned tabs) so restoring gives you back the actual workspace, not a flat URL list. Google Drive backup and multi-profile support are on the Pro tier ($29 one-time). Chromium-only — no Firefox.
Workona and full workspace tools
Workona is a different category: a full workspace replacement that takes over the new tab page, organizes links as cards, and adds team features. It is session-manager-adjacent but not quite the same product. Worth considering if you want a broader "browser workspace" tool rather than a focused session backup.
Comparison table
| Feature | Session Buddy | Tab Session Manager | TabGroup Vault |
|---|---|---|---|
| Saves all open tabs | Yes | Yes | Yes |
| Preserves tab groups | No | Partial | Full (names, colors, order) |
| Preserves pinned tabs | Yes | Yes | Yes |
| Auto-save | No | Yes | Manual snapshot + Drive backup |
| Cloud backup | No | No | Google Drive (Pro) |
| Cross-device sync | No | No | Via Drive backup |
| Multi-profile | No | No | Up to 5 profiles (Pro) |
| Browser support | Chrome | Chrome, Firefox | Chrome, Chromium |
| Pricing | Free, no paid tier | Free, open source | Free (5 snapshots), $29 Pro |
For deeper one-on-one comparisons, see TabGroup Vault vs Session Buddy and the Chrome session manager extensions roundup.
If you use tab groups, what changes
If your workspace is just tabs and windows, any of the three tools above will serve you well. If your workspace is structured into tab groups, the choice narrows.
A flat session manager saves every URL you had open, but the moment you restore the session, the group structure is gone. You get a wall of tabs. If you had invested 20 minutes organizing "Client A", "Deploy", and "Reading" into color-coded groups, you just earned yourself 20 minutes of recreating them.
Group-aware tools avoid this by treating the tab group as the fundamental unit, not the individual tab. The snapshot includes the group's name, color, and member tabs as a single object. Restoring rebuilds the group exactly as it was.
Sanity check
Ask yourself: when I restore a session, am I OK with a flat list of tabs, or do I need the tab groups back exactly as they were? That single question eliminates half the category for most users.
Which one fits your workflow
Researchers and students who lean on tab groups per topic and want snapshots that last weeks: TabGroup Vault. The group structure is what you are protecting.
Developers with one group per client or feature, multiple Chrome profiles, split views: also TabGroup Vault — the multi-profile support and group-aware snapshots match that setup well.
Recruiters, sales reps, or anyone with flat tab lists who needs periodic auto-save and JSON export: Tab Session Manager. Session Buddy if you prefer a more polished UI over open-source flexibility.
QA or support engineers who reopen specific repro sets frequently: Session Buddy's two-pane session library makes that fast. TabGroup Vault if those repro sets live inside tab groups.
Firefox users: only Tab Session Manager crosses the browser boundary. TabGroup Vault is Chromium-only.
The short answer
Ask whether you use Chrome tab groups. If yes, only TabGroup Vault preserves the full structure — everything else flattens your groups into a URL list. If you work with flat tab lists, Session Buddy is the most battle-tested option and Tab Session Manager is the best pick if auto-save matters. Unsure? Try TabGroup Vault's free tier — 5 snapshots is enough to know whether group-aware sessions fit your work.
TabGroup Vault quick facts
Free tier: 5 snapshots, full tab group support.
Pro: $29 one-time, unlimited snapshots, Google Drive backup, up to 5 Chrome profiles.
Privacy: local-first storage, Drive sync is optional.
Install: Chrome Web Store.