Functionality wise I love this extension and wish I could keep using it but unfortunately performance wise I've determined it to be the culprit behind Firefox having a CPU usage upwards of 50% on an i5-9600K @ 5.0GHz with under a dozen tabs open. All of the tabs were extremely light pages such as wiki or github pages containing basically nothing but text and hyperlinks. I've never seen Firefox go above 10-15% CPU usage even with close to 100 tabs open across multiple windows on multiple monitors with stuff like YouTube and 3D web apps going, especially since hardware acceleration was added, but this extension bumped the Firefox task to 25-35% CPU usage as well as bumping Firefox's WebExtension task all the way to 15-25% for a total averaging 40-60% CPU usage. Immediately upon disabling the extension Firefox/WebExtension usage dropped down to normal levels. I ended up switching to the original Panorama View (which this extension is a fork of) and with all the same tabs open Firefox hasn't gone higher than 1% CPU usage and WebExtension hasn't gone above 0.2% so I'm not really sure what's going on with this extension but if you're using it I'd advise checking out whatever system monitor you use.

Terrible ext from 90's
Just see like it work in opera!!!!!!!!!!

No idea how to get it to work. A manual perhaps?

I absolutely love this add-on, unfortunately a recent firefox update has made it so enabling this or similar extensions will make it so tabs can no longer be moved around. I hope this one issue is resolved quickly and I can continue using this great add-on.

works pretty good, but when i updated to sequoia all of my groups were deleted and only my pinned tabs remain. odd since i've updated to sonoma and that didn't happen.

I've used Panorama for years, at times this was *the* add-on that kept me on Firefox.

good old panorama substitute. works better/smooth than other panorama-like addons, despite being so old.

Indispensable ! Une mise à jour pour enlever le bouton + serait chouette.

One of the most useful browser extensions I have ever used. As a graduate student, this is life-saving. I can organize hundreds of papers and results, label them, and come back to them as needed vs relying purely on a reference program like Endnote to keep track of things and constantly have to re-search everything. Half tempted to credit you in my dissertation!

I have lost my groups multiple times now due to crashing. My guess is this add-on crashes FireFox causing FF to wipe my data. It's getting old. I shouldn't have to back up my data every few hours.

Too limited in usage compared to other tab add-ons such as simple tab groups and sidebery.

I like where this extension is going, but its not there yet. Its clunky, and you cant have the popup and the panorama view on 2 hotkeys, you have to switch between them in settings.

I used to love tab groups back when they were a core feature, but have gotten used to working without them now days. This doesn't really live up to the hype.

More than that though, I have an issue where I can't unhide tabs, and some tabs are hidden automatically. Why would I want this?

I want to love this plugin, but it's so buggy. All the features are exactly what I want, but it occasionally loses tabs when moving them between groups. Containers sometimes get hidden and are impossible to resize or bring to the front. Sometimes you click on tabs or containers and it doesn't respond to clicks. Dragging tabs between containers sometimes causes duplicate tabs. And more.