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What is Tab Session Manager?
Tab Session Manager is a browser extension (a WebExtension) that saves and restores the state of your windows and tabs, so you can return to a set of open pages later. Its page describes it as a tool for "restoring and saving window / tab states," and it also supports automatic saving.
What that means in practice
- Manual session saving: You capture the current window or tab layout and give it a name, then reopen it when needed. Useful when you're researching a topic, planning a trip, or juggling several client projects and don't want to keep dozens of tabs open all day.
- Automatic saving: Because sessions can be saved on a schedule or on changes, an accidentally closed window or a browser crash is less likely to cost you your open pages.
- Window and tab states: The extension deals with whole windows, not just single bookmarks, so the arrangement of tabs is preserved rather than flattened into a list.
Who it suits
People who routinely run many tabs across several windows, and who want a recoverable snapshot rather than a permanent bookmark. If you only ever need a handful of pages, ordinary bookmarks are simpler. If you want long-term reading lists, a read-later service may fit better; session tools are aimed at restoring working contexts.
Trade-offs to weigh
More saved sessions means more stored data and a longer list to search through, so a naming habit helps. Automatic saving is convenient but can accumulate snapshots you never review.
Related tools on the same page
The project lists companion utilities: Session Compressor for compressing saved sessions, and Save Tab Groups, an additional extension for saving tab groups in Chrome. The extension is also available for Microsoft Edge from the page, and the project is maintained by sienori.
Next step: before adopting it, list the two or three contexts you reopen most often (for example, "weekly report" and "apartment search") and check whether saving and restoring whole windows matches how you actually work. You can find it at Tab Session Manager.
How do I restore a saved window or tab session after restarting my browser?
Install Tab Session Manager from Tab Session Manager and open its saved-sessions list; sessions are saved and restored by window and tab state, and automatic saving is supported, so the session you want should already be listed after a restart. Select that entry and restore it, which reopens the saved window and its tabs.
A concrete recovery scenario
You keep a "Research" window with a dozen articles and a "Work" window with dashboards. Before shutting down, you save both. After restarting, open the extension, pick the "Research" entry, and restore it as its own window. Restoring by window keeps the grouping intact, so you do not have to sort a dozen tabs back into the right window.
Choosing what to restore
- One window vs. everything: restore only the window you need if the full session would overload memory or clutter the tab bar.
- Saved snapshot vs. current state: a saved session reflects the moment you saved it; tabs opened afterward are not included unless automatic saving captured them.
- After a crash: check the list immediately, before opening many new tabs, so the most recent automatic save is easy to identify.
Practical next step
Give sessions descriptive names and save before closing the browser. If you rely on tab groups, note that the page lists a separate add-on, Save Tab Groups for Tab Session Manager, for saving tab groups in Chrome, so group preservation may take extra setup.
Does Tab Session Manager support automatic saving, and how do I configure it?
Yes. Tab Session Manager is described on its page as saving and restoring the state of windows and tabs, and it also supports automatic saving. The page confirms automatic saving as a feature but does not spell out the settings screen, so the steps below are general guidance for configuring it once installed.
How to set it up
- Install the extension for your browser from the Download section on the site.
- Open the extension's options or settings page (usually via the extension's icon or your browser's extensions manager).
- Find the automatic saving option and switch it on.
- Choose a save interval or trigger if the settings offer one, so snapshots are captured at a rhythm that suits you.
- Confirm a saved session appears in the session list, then test restoring it in a spare window.
Practical scenario
If you keep a dozen research tabs open across several windows and close your laptop each evening, enabling automatic saving gives you a recent snapshot to return to the next morning without manually saving. Someone who only occasionally needs a restore may prefer manual saves to keep the session list uncluttered.
Related tools on the page
The site lists a Session Compressor for compressing sessions and a Save Tab Groups add-on for Chrome, which may matter if you want to preserve grouped tabs.
For official details and the download, see Tab Session Manager.
Can I install Tab Session Manager on Chrome, Firefox, and Edge, and where do I download it?
Yes. Tab Session Manager is a browser extension for Chrome, Firefox and Edge; the official site at Tab Session Manager presents it as a WebExtension for saving and restoring window and tab states, with automatic saving supported.
Where to get it
- Edge: the official page has a "Download for Microsoft Edge" link, so that is the most direct route from the site.
- Chrome and Firefox: the site is the project's home page rather than a store listing for these two. The reliable route is each browser's own official add-on store: the Chrome Web Store for Chrome and Firefox Add-ons for Firefox. Search for "Tab Session Manager" and confirm the developer is sienori before installing.
- Source and manual install: the page links to the project's GitHub repository, and its development notes describe loading the unpacked extension in Chrome via
chrome://extensionswith Developer Mode, and loading a temporary add-on in Firefox viaabout:debugging. That path suits people who want to inspect or modify the code, not typical users.
A practical check before installing
If you rely on session restore across all three browsers, install from each browser's store rather than mixing a store build with a manually loaded one, and check that automatic saving is switched on after installation. Saved sessions stay tied to the browser profile where they were created, so plan how you will move important sessions between Chrome, Firefox and Edge.
The site also lists two companion tools: Session Compressor for compressing Tab Session Manager sessions, and Save Tab Groups, an additional extension for saving tab groups in Chrome.
How do I save and manage tab groups with the Save Tab Groups add-on?
The Save Tab Groups companion is described on the Tab Session Manager site as an additional extension for saving tab groups in Tab Session Manager for Chrome. In practice, that means it bridges Chrome's native tab groups and Tab Session Manager's session storage: you keep your groups in Chrome, and the add-on lets those grouped tabs be captured and restored alongside your other saved window and tab states.
That workflow suits people who organize work by project—client work, research, a set of docs for one task—and want those groupings to survive a browser restart or a closed window. The trade-off is scope: the page lists it as a Chrome addition, so if you use Firefox or Edge you should expect to rely on Tab Session Manager's own window and tab saving without the group-level layer. Grouping also adds upkeep; restoring a large set of groups can reopen many tabs at once, so it helps to prune sessions you no longer need.
A useful next step: install Tab Session Manager, confirm a basic save-and-restore works, then add the Save Tab Groups companion and test one small grouped window before trusting it with your full setup. For background, see Tab Session Manager and the extension listing on Chrome Web Store.
How can I contribute translations for Tab Session Manager via Crowdin?
Use the project's Crowdin translation project linked from the Tab Session Manager site's "Translation" section at Tab Session Manager. The page states that translations are contributed on Crowdin; it does not list the exact Crowdin project URL, so open the site and follow that link rather than guessing an address.
Practical steps
- Open the site's Translation section and follow its Crowdin link.
- Create or sign in to a Crowdin account, then join the Tab Session Manager project.
- Pick your language and translate the untranslated strings, or review and vote on suggested translations.
- Save your work; project maintainers typically review and merge translations before they appear in a release.
What to expect
- Who it suits: fluent speakers of a target language who are comfortable with short interface strings such as button labels and settings names.
- Trade-off: translations may not ship immediately if maintainers review them first, and terminology should stay consistent with existing strings (for example, keeping "session," "window," and "tab" distinct).
- Tip: check whether your language already has partial translations and focus on the untranslated entries first.
For a concrete example: if you use the extension in Japanese and notice English-only labels in the session list, translate those strings in Crowdin and note the context in the comment field so reviewers understand where the text appears.
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