Interesting bugs, but has been a godsend nevertheless Rated 4 out of 5 stars

I'm not exactly quite sure why, but it's caused many addons to stop functioning for whatever reason, leading me to about 2 hours of somewhat stupid troubleshooting, before I disabled and re-enabled it again which brought it back- Addons affected were Hola, DuckDuckGo Plus, Twitch Fox and Tab Memory Usage.

Otherwise, it has been really reliable to me, especially with Tab Groups' use of session recovery back up aiding its own broken system.

developer please update to firefox 57 Rated 5 out of 5 stars

Very useful add-on but stopped working after update to FF 57+ please update we need it

Great but.... Rated 5 out of 5 stars

This is a really useful utility. I tend to have multiple windows open (with many tabs) and then periodically save the session and start afresh.

The latest update of Firefox Dev Edition #57 doesn't support this Add-On so please consider an update.In the meantime could you please let me know where the old sessions are saved, so I can feel reassured that my sessions are safe.

Many thanks.

Works great in Pale Moon browser! Rated 5 out of 5 stars

Version of Session Manager works great in the current version of Pale Moon browser. I used this in conjunction with Tab Utilities Phoenix which is available on the Pale Moon add-ons website to replace Tab Mix Plus. Tab Mix Plus wasn't opening tabs at the proper locations. I really hope the developer of Session Manager will consider supporting this add-on for Pale Moon going forward. It sounds like PM is dedicated to keeping effort required to support much easier for developers. Fantastic add-on. Thank you.

FF 57+ Rated 3 out of 5 stars

Says "This add-on is not compatible with your version of Firefox."
In about:addons it's disabled as "Legacy".
Please update asap!

not working anymore since update to 55.0.3 Rated 3 out of 5 stars

fantastic and daily used... until stoped working since update to 55.0.3 - worried with this issue and about the coming transition phase of Firefox =/

Legacy for FF 55 Rated 4 out of 5 stars

In Firefox 55, this nice add-on is unfortunately shown as LEGACY.
It still works nevertheless.

Excellent addon! Rated 5 out of 5 stars

Don't have to worry about losing session data/tabs anymore. can just save them and go back later if I need to. Hopefully this gets updated with the WebExtensions standards so it works in Firefox 57!

the best Rated 5 out of 5 stars

Просто нет слов.. самое лучшее что встречал.

Can't restore since last Firefox update Rated 1 out of 5 stars

since last Firefox update to version 55.0.3 I lost ALL my opened tabs and when I try to restore ANY session then it simply doesn't do anything.

works much better than default Rated 5 out of 5 stars

This extension works so very much better than the default session manager. You can actually recover your pages and not have to worry about a crash losing all your open tabs.

Please consider redesigning for Firefox 57 compatibility!

Great addon which still works for me in FF55.0.3 Rated 5 out of 5 stars

Great addon which still works for me in FF55.0.3 I will be really sorry if it not updated for FF57.

Update to Firefox 55 breaks addon Rated 1 out of 5 stars

Can't view tabs. Had to revert to a previous version (

Solution to problems after updating to v55 Rated 3 out of 5 stars

Downgrade firefox to v54 can fix that

Love it until today Rated 1 out of 5 stars

Like BrunoGC, it's not working since the 55.03 update last night. All my tabs are lost.

Great until recent update Rated 4 out of 5 stars

I've been using session manager for a couple of years and it has always worked really well. Unfortunately, after updating to Firefox 55, it now show empty tabs and appears to have lost my saved tabs. Please fix this!

Great addon! Rated 5 out of 5 stars

Not much else to say, it does what it has to do and does it well.

not working with firefox v55 Rated 4 out of 5 stars

fantastic add-on, cant use firefox without it. BUT since upgrading to v 55 empty tabs appear when launching firefox. any updated coming soon ? Thanks!!

Please update for Firefox 57+ Rated 3 out of 5 stars

It has creating problems with Firefox Search bar. Please update it.

Best addon ever Rated 5 out of 5 stars

I´ve been using it for 5 years now and it worked without problems most of the time but when i hit 2000 tabs firefox couldnt handle it anymore so i switched to nightly where it continued to work without problem. Sadly since the new nightly update it doesnt work anymore but i hope it gets fixed soon. Still the best addon for people who keep tabs cause you might need it again <(^^)>