First of all: A BIG THANK YOU! This is looking very good! FF after 56 was a big regression!
Tab groups should be part(optionally or not) of every FF, like tabs are. I mean if you have files, you have to have folders/directories!
In order to be 100% helpful, tabs, have to have 4 important things:
1. Free arrange and rename the tab groups;
2. Saving the session at will and automatically(every hour or so) before FF crashes or is closed normally;
3. Possibility to move tabs from one group to another.
4. A "tab group bar" above the tab bar, with a button to hide/show the "tab group bar".
I guess you have already covered most of this and I hope you will do your best for the others!
Cheers !

EDIT : take a look at this: https://postimg.cc/SJhgfGdn
for clarification about paragraph 4. See that green T to the right of the tab bar....that is the button with which left click show/hide the "tab group bar".

Panorama is back... and better! Hooray

Cool

Thanks so much for essentially reviving the Tab Groups/Panorama feature! Some other extensions have tried and not quite hit the mark, but this one is the best so far. Hope you're able to take it even further as the WebExtensions API expands!

效率低不说了，还丢组，上次重启Firefox之后就丢失了全部分组和标签。

Thank you for reincarnating such a vital feature. Last thing I miss( and miss SO much) is 'free arrange' - I mean to have the tabs on the whole screen, not in a small pre-arranged window. may I ask when it will be ready? I really cant stay on old Firefox no more(

I wish you implement "select last active tab after closing current tab" feature.

I have tried 2 other addons that bring this functionality, but they both conflict with your addon:

When I switch from group A to group B and then close active tab in this B group - I am switched back to A group. That works like it should be: last active tab was that one in A group.

But if I switch back to group B again - then any active tab from A "moves" to group B.

:(

I think you just changed the way I will use Firefox. This is absolutely ideal.

I wonder if you have distant plans to implement the ability to change the window background/theme. It would be a luxury, I know; but I feel compelled to nudge you in that direction anyway. ;)

good addon.
please enhance the performance in groups change.

Best FF addon! Thank you!

I only tried this briefly before I removed the extension. First, it would not recognize my pinned tabs so I had to un-pin tabs to add them to groups. Then it crashed my browser twice.

This has a lot of potential to become the best tab grouping addon for Firefox. Design should be more elegant in Dark Mode as well. Thanks to the developer, you did a great job!

I don't understand how anyone could use FF without this add-on. Very easy to understand and does exactly what one would expect it to.

FF crashed and I lost all my tabs + groups the other day. After an hour or so of messing around with .json/.jsonlz4 files, I concluded that FF had just lost them. I'm glad that I had made a backup from STG, it's unfortunate that it's wayy back from 6 months ago.
Could an auto-backup feature be added? I don't trust FF with my tabs anymore.

If you manage to do the "free arrangment" in "Manage groups" you will get 5 stars and 6 if FF supports it one day :D
Why do we have to add [STG plugin] Open Manage groups to open it directly?

Use the channel updates ESR (last68.4.1). Add-on not work: "downloading. please wait" Reinstall add-on, restore pref - working))

Works like a charm and is very snappy. Thanks for all the effort!

Thanks for giving me back my sanity.

Endlich kein Reload mehr der Tabs sobald man von einer Gruppe in die andere wechselt. Aus diesem Grund habe ich FF bisher noch nicht geupdated. Jetzt kann ich endlich.