It took 12 Gb RAM and broke every time

I was searching for something like vivaldi tab groups, this is a life saver, and really well organized, even better than vivaldi tab groups

The single most valuable extension available for Firefox. Running Win-10 Pro with a fast processor and 32 GB RAM means having a bunch of groups with 8-12 tabs each is no problem.

Pass on this one. Made my computer run slow and hot. Not intuitive to use which is how I think other people have lost their bookmarks on it; FYI if you get stuck trying to open a group in order to save all the tabs in it, you need to click on any tab WITHIN the group to open the whole group. (Clicking the group itself only offers to delete it.) Still looking for my perfect tab solution. *wistful sigh*

Perfect for efficient work on multiple projects, helps you keep your environment clean and clutterless. Great to use with Fast Tab Switcher, BTW.

I hope there is a setting option to set not show the number of groups on the icon.
Put all the feature icons on the right side of toolbar. It will be more convenient.

Initially, I submitted a review stating that this extension didn't reload tabs in their groups when closing and opening Firefox. It turns out that this was a conflict with the addon Tab Session Manager, which was reloading windows of its own accord. Since disabling that feature, this addon functions perfectly and deserves five stars. It is a great extension.

太棒了，曾经的经典又回来了，又有了重新用firefox的理由了。
Great Addons！this let me from Chrome to Firefox!

A great add on that sadly created problems with a site I frequent daily, resulting in my need to uninstall. Not sure why, but messed with links within the site and site graphics.

This addon is great. Panorama never should've been removed from the browser. I can't think of anything I want it to do that this addon doesn't do already. Maybe fix that bug where closing a tab sometimes takes you to another tab group, but that's a mild annoyance I can easily forgive. Everything else is great and with the latest update, the panorama seems to come up faster and is more responsive.