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!

This add-on is simply amazing, not just an ugly list of tabs (like other add-ons), but an actual preview with all the groups neatly organized, very easy to edit and manage.

Please add option to disable groups counter over toolbar icon, and also ability for custom CSS on Panorama page.

It's Good

A tool that puts order on an unwieldy list of tabs for many different uses

Indispensable! Absolutely necessary!

indispensible. i literally won't use FF without it. as a professional developer, i can't understate how useful this addon is for keeping FF in line.

Having over 1,000 – 1,500 tabs opened on my 16GB ram PC for over a year, I find this add-on extremely helpful. Not too infrequently firefox just crashes without showing slowing-down symptom first. Other times disabling this add-on and enabling it a few second afterwards will usually solve the problems without losing any tab groups.
I have one feature to request. Having a dozen windows opened, each with several tab groups, I have on my taskbar a dozen icons with name labels. As it is, the name labels vary reflecting the name of the tab in that window I last visit. It would be more informative if , let’s say, a window contains a lot of tabs about health, the window name label on the taskbar retains and remain the name HEALTH I give for that window. The procedure to request a feature in GITHUB is over my head.

Excellent extension, exactly what I want. The group switch can be done easily in popup mode. Would be better if the number and name of groups can be stored.