I'm really pleased with this add-on! One big issue I noticed today, possibly related to the other review below me (luckily I exported a backup yesterday)... all of my user-saved sessions simply disappeared!

^^ I'm quite sure it happened right after I added a new container name to Mozilla's Multi-Account Containers.

Don't trust this app!

It used to work fine - until today: woke up with my computer having crashed and suddenly NO session was shown in Session Boss to be recovered anymore. Not one from last night, not even a single one from the months and weeks before. I had about 150 tabs open for work and they are now ALL lost!!!!

PS: I cannot even save a new session anymore now, something seems to be completely broken with this plugin... (v 2.11.2)

I only see one feature missing than the other "big bosses" of the session management here and that is to support loading all the tabs "discarded" rather than lazy loading... It'd be so great to have an update to support this and also a big plus of it that other don't have that it's supporting tab containers... Please just add an option to load all the tabs "discarded". Thanks...

Looks promising (will update rating after more usage)

Please remove the Ctrl+Shift+S hotkey, because it's the default one for Firefox Screenshots.

Automatic save session every X minutes is a cool feature. Edit: but I would need a feature to not save a new session when it's exactly the same of the previous one.

This is a super extension enabling a much more thorough management of windows and sessions than otherwise. Thank you for creating this.

Did exactly what I wanted! Had to play a bit to figure it out, but wasn't too hard. Wanted to save my session so I could install a new OS

Session Boss is on my top 10 list of favorite Add-On (Extensions). It's like a very well organize OneTab, that automatically saves the tabs without closing them.

1) Session Boss has a superb UI!
1a) It has an option to switch from a pop down menu to a full page interface. I've never seen this option in any other Add-On. Great idea.
1b) IMHO, Newbies should use Session Boss with the full page interface at first. It's easier for users unfamiliar with the Add-On to quickly understand and appreciate all its option on a full page UI.
1c) IMHO, The pop down UI is good for quick access, and for those users knowledgeable with the Add-On.

2) I like the scheduled session backup increments, where it saves the last 4 15-min interval backups, the last 4 hourly backups, last 4 daily, last 4 weekly, & last 4 monthly.

3) It has an On-Change backup, which is separate from the interval backups.

##############################################
My Recommended Improvements:
1. Remove hyperlink to "Add-ons Manager", and just display it in normal text. Most users know how to access Add-ons Manager, and the current behavior adds more confusion, where the hyperlink takes user to a new page displaying an error message.
2. On the "About the Extension" popup window, add a hyperlink to point to the extension link, where you have a lot more details about the extension.
2a. {Bug} The [x] to close the popup window doesn't work. Nothing happens when it's clicked. User has to click Ok to close the window.
3. Add right click options on the Add-On icon, which would give user two menu options. (Capture All Tabs in All Windows) and (Capture All Tabs in Current Window). See OneTab right click menu option as example.
4. Add option to capture tabs, and then close them. This would be similar to what OneTab does.
5. Allow scheduled backup sessions to be edited.
6. Add option for an On-Close Session Backup. This would capture all the tabs when user closes the browser. This can be displayed on a new tab, only save the last 10 or 20 closed session backups. If programming automatic capture on close can not be done, then add a button to the right click menu to capture session and close the browser.
7. Add help option. It could just take user to the Session Boss extension link for now, until a page with more help can be developed.
8. Add accumulative backup option.
I was expecting that the hourly backup would be a consolidation of the last 4 15-min backups. But it's a regular backup performed on hourly interval. I recommend adding option that would let user choose to have accumulative backups starting at the hourly interval. With accumulative option enabled, the hourly backup would be an accumulation of the last 4 15-min backups, and the daily backup would be an accumulation of all the hourly backups for that day. Monthly would be accumulation of the days. Have a yearly backup with a 12 month accumulation. The accumulative backup can be displayed in a tree view, where a year node has 12 (monthly) children, and each child has 28-31 (daily) children, and each child would have 24 (hourly) children. At the hourly node, it would display 4 (15-min) children, and those children would display exactly what the 15-min backup displays in the current UI.

Confusing mess. Sessions get lost or overwritten due to unintuitive UI. Common features are hidden, while seldom used ones are prominent.

Exactly what I was looking for. Works as designed.

This extension just saved my ass. It did its job quietly, saving my sessions, and then restored my 50 PhD-related tabs perfectly when Firefox went AWOL. I want to give this person a box of chocolates or something

A comprehensive and flexible tab backup solution that is a life-saver when Firefox decides to lose you session history.

Very easy to use, has backup feature. Can easily store session of single, multiple window and restore at once. Restore in single click not available in other addons with higher ratings. works Great !!!

Best extension for managing sessions on firefox! Absolutely Great. Thanks William!

I just want to ask if you can please fix session restore for multi monitor while using more firefos windows and they are maximized or fullscreen. Here is what happens: if I try to restore a saved session when the saved windows are "normal" and not maximized or fullscreened (F11), they get correctly positioned in their monitor screen position (we have 5 in our company) and that's ok; but if I try to restore a saved session while firefox windows are saved as maximized or fullscreen, they get all restored in monitor 1.

I know that firefox has a problem with window positioning and multimonitor, but maybe you can try something like this: you can do a delay maximization after restoring a normal window so it first get correctly positioned as normal window (not maximized or fullscreened) and then after they are positioned in their correct monitor (or position) you can send a signal to every window to maximize or fullscreen itself. Do you think that could work?

Please let me know.
Thanks.

Sometimes it worked well for a long time, but always took a long time to start up, and then sometimes the session was lost. And then recently it failed to restore a whole session, but only a partial one. So since the Firefox setting "Open previous windows and tabs" works well, and is also very fast, I deactivated Session Boss, which is no longer the Boss for me.