Session Boss

Session Boss

Save and restore browser tab sessions.

  • Session Boss
  • Session Boss
  • Session Boss
  • Session Boss
  • Session Boss
  • Session Boss
  • Session Boss
What is Session Boss?
'Session Boss' is a powerful Firefox add-on that autonomously captures and saves your browsing sessions, enabling you to restore your tabs and windows at a later time. It functions by periodically saving sessions and detecting URL changes. Key features include the ability to save and restore tab containers, lazy tab loading, session grouping, and the capacity to search and filter sessions, windows, and tabs. It prioritizes your privacy by defaulting to exclude private browsing windows from session saves.
Users: 2,895 ▼ -3
Rating: 3.62 (128)
Version: 2.11.5 (Last updated: 2024-05-22)
Creation date: 2018-03-06
Weekly download count: 31
Firefox on Android: No
Risk impact: Moderate risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
  • tabs
  • storage
  • cookies
  • alarms
  • contextualIdentities
  • downloads
Size: 345.98K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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Session Boss let you capture the session of the windows and tabs in the browser and restore the them later on. It automates the saving of the browsing sessions with periodic saving schedule and url change detection. It supports saving of containers and restoring them.

NOTE: Session Boss 2.10 by default turns off the inclusion of private browsing windows when saving a session. This default is better for user privacy by preventing accidental leaking of private browsing tabs in the saved sessions, especially in the automatic Scheduled backups and On-Change backups. The inclusion of private browsing windows function can be enabled again via the Preferences page.

Feature Highlight:

  • Save windows and tabs in sessions.
  • Restore a session of windows and tabs.
  • Restore individual windows.
  • Restore individual tabs.
  • Save and restore tab containers.
  • Tabs are loaded lazily.
  • Group sessions into groups.
  • Search and filter sessions, windows, and tabs
  • Undo and redo changes by user.
  • Scheduled backup of the browsing session in fixed intervals automatically.
  • On-change backup of the browsing session when the tab url is changed.
  • Export and import of sessions
  • Show tab creation/dependency hierarchy (support Tree Style)
Privacy Policy This web extension does not collect any information from the user, nor does it send any data to outside parties or servers.

Permissions Usage Disclosure: (This extension requires the following permissions to function properly.)

  1. The "tabs" permission is needed to save and restore the url, title, and other properties of a tab.
  2. The "storage" permission is required to store and load the session data.
  3. The "cookies" permission is needed to save and restore the "cookieStoreId" property in a tab. (Note: the "cookies" permission will cause the display of the notice, "It requires permission to: Access your data for all websites," during installation.)
  4. The "alarms" permission is required to schedule the backup code to run periodically.
  5. The "contextualIdentities" permission is required to get the container information.
  6. The "downloads" permission is required to save the export session data to files.
  1. Some special URL (e.g. file://, about:addons, and about:new) cannot be restored due to strict security policy of the browser. For these, the URL will be shown in a warning page and the user can copy and paste it into the address bar to open it manually.
  2. The navigation history of each tab is not captured when saving a session. It requires further browser API support.
See more
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Supports Tree Style Tabs
  • Good at saving sessions and restoring after crashes
  • Supports tab containers
  • UI/UX is well-received
  • Helps organize different work sessions
  • Sometimes fails to restore all tabs
  • Can wipe all tabs randomly with no recovery
  • No updates since 2019
  • No dark mode available
  • Sessions can vanish without warning
Most mentioned
  • Capability to save and restore sessions
  • Issues with loss of sessions
  • Lack of updates or maintenance
  • Desire for a feature to merge sessions and remove duplicates
  • Support for automated or scheduled backups
Recent reviews
It does fine in remembering the tabs and windows I saved but when i backup a session and try to reopen it it only opens 10-50% of the tabs i had open, and i have to do the rest manually.
by Jay, 2024-03-02
View all user reviews
Risk impact

Session Boss may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.

Risk likelihood

Session Boss is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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