It is better than nothing and it is even looks familiar to what we had before FF57. But despite it gives ability of putting tabs into different groups it is still missing its main purpose - switching between groups making tabs from other groups invisible.

没有达到提升同时访问多个页面便捷程度的预期

ti is awosome

Please do not require the user to manually resize or move any of the groups.

If the addon is to be useful I believe is has to, by default after a single click, present all the open tabs as large as possible while at the same time not require any extra interaction.

The concept of resizable containers in the original Panorama addon did not work and you should rather abandon it - it would be much preferred if group divisions were made automatically.

auto-grouping by domains needed