Save sessions as bookmarks and access them across devices.
Advanced Session Manager: edit, save, change, restore.
It can also be your best Bookmark Manager

Session Sync: Advanced Firefox Session and Bookmark Manager
Session Sync is a powerful Firefox add-on that offers users advanced session and bookmark management capabilities. By saving your browsing sessions as bookmarks, it ensures your data will always be available, no matter what add-on you use in the future. With a rich user interface, you can easily create, restore, open, edit or delete sessions. The add-on also supports various shortcut keys and syncs with any bookmark synchronization service. It's more than just a session manager, it can function as your best Bookmark Manager, offering complex features like active session management, advanced bookmark management, session restore with lazy-loading, session auto-saving, session filtering, advanced drag-n-drop UI, and many other customizations.
Add-on stats
Manifest V2
By: Gabriel Ivanica
Rating: 4.47
1 new ratings
(236)
Weekly download count: 52
Firefox on Android: No
Permissions:
- storage
- bookmarks
- tabs
- clipboardWrite
- unlimitedStorage
Size: 1.44M
Email: ga*****@gmail.com
URLs: Website
Full description: See detailed description
Ranking
# 890 ▼ 2
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
User reviews
Pros
- Easy to use and simple interface
- Works reliably over a long period
- Useful for managing many open tabs and sessions
- Syncs easily between devices using Mozilla Sync
- Provides a convenient workaround for Firefox's tab syncing issues
Cons
- Does not auto-save sessions as expected
- Lacks functionality for closing current tabs or windows
- High resource usage when autosave is enabled
- No support for Firefox container tabs
- Animations can be distracting and unneeded
Most mentioned
- Autosave feature has issues and can be resource-heavy
- Lacks tab deletion and search capabilities
- Wish for Firefox container support
- Useful for research and session management
- Developer support and updates have been inconsistent
User reviews
Отличное и весьма удобное дополнение, поэтому здесь нечего добавить
by Doza_Vikadina, 2025-03-13
by 敬念法轮大法好远离瘟疫, 2025-02-12
Has not saved a current session for years!!
by Firefox user 5974554, 2025-02-08
Add-on safety
Risk impact
Session Sync requires a few sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- High ****** ******* *** ********* ********* ******** ***** *** ** ********** ****** * ******** ******* *****
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- Low ******* ****** ** *** ********* ********
Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of Session Sync. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
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