Works great except that it constantly updates, then announces its update all over my browser (opening tabs and all this stuff). What's worse, it needs to confirm permissions after every update, or the sync stops working. But it doesn't ask to confirm permissions, so the sync just stops working! Extension developers need to make some effort to understand how these things work, and should also be using their own extensions so they learn what goes wrong all day every day in the user's browser.

Very useful when you have so many tabs to save and open. I've read a review where they said that this extension doesn't work with multi-account containers but in my case, it works with it. When I restore tabs or open a session, the containers are working.

Cloud sync is useless. Neither saves sessions to Google Drive nor syncs with other computers.

Solo desearía que su ícono fuese más lindo, así se vería mejor, ya que lo tengo colocado en la barra de herramientas permanentemente

How do I save sessions (permanently) or sort of favorite them so that I can open the groups of tabs later on? Can we replicate Simple Tab Groups functionality with Tab Session Manager ? Thanks.

Very good addon!
Does only save the active page for each tab. Having an option to save each tab history will be great, but it seems that it is due to a limitation of Firefox's API.

Good session manager, has good features. Sessions open fast. A problem for me after saving a fair number of sessions was slow opening time. I'd start FF and the TSM would not populate with sessions for perhaps 10-15 minutes. Is it loading sessions all that time? Perhaps should load auto-save sessions last? As said in another review, wording of how to save backups is confusing. Better wording: "Save location must be under the Download Folder (set in browser settings)."

One of the most useful add-ons.

very useful tool for all MFF Users like me..

The original order of the tabs is lost when the window is restored.
In my case, the extension is to blame: [https://addons.mozilla.org/en-US/firefox/addon/tab_position_options]
The error is in option: [New Tab][Right of current tab],
It works if you leave it as [Default].

Another solution is to use
https://addons.mozilla.org/en-US/firefox/addon/tab_position_options

with the other extension

https://addons.mozilla.org/pt-BR/firefox/addon/always-right