# sienori/Tab-Session-Manager

WebExtensions for restoring and saving window / tab states

Repository: https://github.com/sienori/Tab-Session-Manager
Canonical: https://ross.abutalabs.com/products/tab-session-manager
Homepage: https://tab-session-manager.sienori.com/
Language: JavaScript
License: MPL-2.0
License Family: copyleft
Topics: web-extensions, firefox-addon, chrome-extension
Last push: 2026-08-17T08:01:56+00:00

## Health v2 (maintenance only)
Score: 92/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 81, longevity 100
- inputs: {"age_days": 3257, "days_push": 16, "days_rel": 47, "gap_med": 35, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2440, forks 239 (observed 2026-08-28T04:06:51.581718+00:00)

## What it is
Tab Session Manager is a WebExtension that saves and restores the state of browser windows and tabs, with support for automatic saving. It works across Firefox, Chrome, and Microsoft Edge.

## Use cases
- save and restore browser tab sessions
- automatically back up open tabs and windows
- recover tabs after a browser crash
- manage multiple browsing sessions
- restore a previous window layout in Firefox or Chrome

## When to choose
- you frequently open many tabs and want to save/restore sessions
- you want automatic session saving across Firefox, Chrome, and Edge
- you need to recover tabs after closing a window or restarting the browser

## When to avoid
- you only need simple built-in session restore already provided by your browser
- you need tab management features beyond saving and restoring sessions, like tab grouping natively (requires an extra companion extension in Chrome)

## Facets
- artifact type: plugin
- maturity: active
- function: developer-tools
- domain: browser-extensions, developer-tools, web-development
- platform: browser, browser-extension, cross-platform
- tags: tab-management, session-restore, webextensions, firefox-addon, chrome-extension, edge-extension, automatic-saving

## Member repositories
- sienori/Tab-Session-Manager (main) score 92

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:51.581718+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:30:45.407604+00:00, confidence not recorded.
  - readme: https://github.com/sienori/Tab-Session-Manager (fetched 2026-08-28T04:06:51.581718+00:00, sha 62de156e4eef)
  - homepage: https://tab-session-manager.sienori.com/ (fetched 2026-08-29T10:12:23.729112+00:00, sha 314cdc071691)
- Data as of 2026-08-30T08:39:29.467469+00:00.