LOVE this extension!
Yup, it's simple, and it's great for keeping organized!

I have a group for "general", one for school, and one each for whatever games I might be into. (Right now Satisfactory and BattleBit.)
Super amazingly convenient to have these tab groups ready to go. They are much more flexible and easy to adjust than a bookmarks folder. Just right click a tab and send it to a group, or use the pop-up, or the manager.

You can even choose to hibernate tabs/groups (or not), but they'll still be "open" for later use. You can have a tab loaded and running some demanding applet, but still get it out of the tab bar so you can focus on something else momentarily. It's amazing.

Some of these functions are available in other extensions like Sidebery, but again I like this one for the Simple aspect. I use this in tandem with Tab Center Reborn for a (again, simple) vertical tabs sidebar, and now my toolkit of tab management is versatile yet lightweight, and still in dark mode!

I nearly forgot that sadly I'm here to comment on a pet peeve. The tab overflow icon, that little arrow managed by the about:config preference browser.tabs.tabmanager.enabled, is for some reason inescapable when using this extension, unless you are in the "other tabs" misc group which defeats the purpose.
Something to do with the behavior of the arrow: it is only supposed to appear if you have many tabs, but with this extension I can close all my tabs and just having the tab groups active even when empty shows the arrow. Small irk, very silly for me to be frustrated by, but there you go.
I don't know if I could possibly work around this using the extension's settings, I haven't tried, and I don't know if it could be patched by the extension dev to behave differently. So it's definitely still a 5 star extension. I love all the other stuff it has going for it.

Thanks Drive4ik for the great extension!!

BTW Mr. Dev, if you're reading, any chance for a feature like "automatically discard previous group when switching groups"? Or maybe a button that will switch to a group and discard other groups at the same time? My machine is not super strong and I run multiple apps at once, so it's usually best for me to hibernate inactive groups, and it's tedious to right click -> "discard other groups" all the time. Thanks!

Help people manage their cluttered Tabs in one dashboard. Great extensions!

does not work as intended.simple as that. also cannot delete tab groupings.

This should be built in to Firefox.

Not as simple as you think. Wish it would just work like chrome

Super

Great so far

The extension doesn't support pinned tabs, which is what I was hoping to use it for. I have a lot of different groups of pages that I use for different projects, and pinned tabs are common in my workflow.

I was hoping I would be able to create different group of pinned tab (e.g. a group for work tabs, a group for personal tabs and a group for x other project), but I can't.

Another small nitpick is that all of the icons are near black, which makes them hard to read over dark mode theme.

Stellar extension. Chromium based browsers tab group functionnality pales in comparison. This has been single-handedly maintaining me on firefox for years.

Doesn't seem to work on latest firefox on windows 11. I'm able to add tabs to groups easily, but there is no way to open those tabs again. I go to hidden tabs and see all of my groups mashed into one area - and clicking on the group simply opens and closes it within a fraction of a second. Broken functionality.

This add-on is really great. It serves its functionally very well. I just wish there was a visible indicator for discarded tabs at all times. It's quite bothering having to open this add-on's menu every time I wanna remember if some tab was discarded. Otherwise, it's pretty great, and I'm thankful it exists! <3

I am docking a star for the shortcuts sometimes being finicky, but otherewise an excellent extension. Vivaldi spoiled me on workspaces/tab groups and now I can't live without them.

😳 like the thought, but convoluted

it's not simple it's to complicated, I just want the Tab Groups like in Chrome and not this much functionality, which are mostly useless.

Doesn't seem to work. Firefox 113.0.2. Ubuntu 18.04.6. When adding tabs to groups, it just hides them and when attempting to unhide one, it just opens and rehides the tab immediately.

This is pretty well an essential add-on. Who doesn't have a bunch of various tabs they need to open for specific activities. For example, to do your banking, to search for best hotels, to search for best pricing. This add-on lets you set up commonly used groups of tabs and does an excellent job keeping things straight forward and simple. THANK YOU for a great add-on.

*** The one thing I did notice is that when loading Simple Tab Groups for Firefox on a Mac is that the Simple Tab Groups gets buried and as a result, you can't find the STG icon. Search in your bookmarks, it's there. Then drag it to a visible part of your bookmarks bar. Next, right click and click Pin To Toolbar. There, the icon appears !

After installing, the icon doesn't show up in the icon bar. Firefox reports tabs hidden with no way to get to them. Uninstalling since this is useless!