restorable even if Windows crashed Rated 5 out of 5 stars

maybe I stick with this add-ons for above 8 years. undo close tab is a smart feature I use often.
it backup my opened tabs even though Windows crashed!
this help me save time do not want to re-open website.
also I put saved sessions located on Dropbox this save my life.

Closed Tabs Not Being Cleared Rated 4 out of 5 stars

I really love this addon. it's useful to keep sessions I've had without adding them all as bookmarks each time I close Firefox but the latest version has a flaw in that I can no longer clear my closed tabs.

Clear closed windows? Yes. Clear closed tabs? Nope.

Hope they fix this cause it's annoying to have to clear history when I want to save a session without closed tabs.

Imprescindible Rated 5 out of 5 stars

Un programa fundamental para quienes trabajamos con muchas páginas a la vez y las queremos tener organizadas y guardadas

Hope Rated 5 out of 5 stars

I hope you can adapt this addon to the new Mozilla. I just sent them a message to find a solution because I know that sadly not all old addons can be updated to their new code. Many useful addons (and developers work) are wasted.

This user has a previous review of this add-on.

57 Rated 5 out of 5 stars

I am using your addon and I like it. But, please, prepare for Firefox 57. I have saved your addon to retrieve all those dozens of tabs which I needed. It's useful.

This user has a previous review of this add-on.

Thanks a million Rated 5 out of 5 stars

Thank you so so much Michael for creating this wonderful add-on. I use it every day on several PCs - work, home, laptop and it has saved my skin on several occasions. Will you be updating it for FF57+? Thank you if you do!

Was good, but...... Rated 1 out of 5 stars

I loved this addon till this very day..The new update simply killed all my tabs, no back ups, no hope to restore anything. Thank you very much.

Doesn't work correctly after 56.0 version update Rated 2 out of 5 stars

It really disappoints me.

Great extension Rated 5 out of 5 stars

As long as Mozilla Firefox can not cope with sessions (especially after crashing the app), this extension is really helpful and I do recommend it for ALL users. I appreciate this Michael.

I love this add-on Plz Update for FF 57+ Rated 5 out of 5 stars

I love this add-on Plz Update for FF 57+

Rated 5 out of 5 stars

Really awesome addon... FF57?

Great addon Rated 5 out of 5 stars

This is one of the great FF addons. Hope it finds a way to the new addons system. If it doesn't maybe this can be used as an alternative:

https://addons.mozilla.org/pt-PT/firefox/addon/tab-session-manager/

One of the best Rated 5 out of 5 stars

I hope the developer will keep this updated. One of the best add-ons around, been using it for years.

Rated 5 out of 5 stars

Great add-on!
FF57?

Excellent app Rated 5 out of 5 stars

Have been using it intensively through years. It is exactly as it needs to be. But it still needs support for Firefox Quantum.

Please Update for Quantum !! Rated 5 out of 5 stars

Have been using this Add-On for years and to suddenly be without it after the recent update....I can no longer revive my earlier sessions ...feeling sad..boo

Thank you Session Manager Rated 5 out of 5 stars

I started my Firefox 55.0.3 this morning and found none of may tabs. I had many many "New Tab's" but none of my many many tabs that I have been using. I looked up options using Safari and didn't have much success. I was going through my history files and restoring them one by one. After about an hour I happened to remember an add on I had. Session Manager. I fired it up and was pleasantly surprised all my tabs were restored. Thank you session manager!

Favorite function no longer working Rated 3 out of 5 stars

Holding Alt key while clicking page that I want to open no longer works..bummer.

Update for FF 57+ Please!!!!! Rated 5 out of 5 stars

Update for FF 57+ Please!!!!!

This user has 2 previous reviews of this add-on.

Does work with Firefox 55 Rated 3 out of 5 stars

Works fine for me here on portableapps.com version Firefox 55.0.3 64bit.