Seamlessly sorted a thousand of open tabs.
However, I agree with other commenters that sorting by domain and dark theme support would've been nice. Otherwise, a nice extension that does exactly what it's said to do.

Firefox did seem to crash but I suspect it was the amount of tabs I sorted at once. Works exactly as documented otherwise. Thanks!

ピン留めしていないすべてのタブをソート対象にしている。
私の希望する動作は選択しているタブだけソートすることです

Great add-on, but the icon could have dark mode support !

In every Firefox version I have ever used, ctrl-shift-o opens up the Bookmarks Manager. After installing this add-on, when I type ctrl-shift-o all I get is the Bookmarks Manager. No sorting of any kind is done to the tabs. Additionally, none of my PC keyboards has ever had a "command" key that I remember. I did try using the Windows key--but that didn't work either. If you're using this add-on with a PC and Firefox and it works for you, please tell me how you are getting it to work.

Works well for me. Only wish I could sort the tabs by domain instead of just url.

Sorts Tabs Alphabetically, works perfect for me

Works well, no issues. Useful for clearing down tab-overload after a heavy session. An idea for an enhancement (would earn 5 stars) - provide the option to sort by just the last two parts of the domainname - so that eg. docs.nginx.com, www.nginx.com and nginx.org would all be placed together.

Works as intended, under-rated. -_-

Is it working, especially for new tabs opened?

ctrl-shift-o opens my bookmarks manager (Library window).

Firefox 57.0 Linux-64bit

A future proof web-extension providing a toolbar button to sort tabs by site.

When I have lots of tabs open, it tends to turn into a mess, so this is great for cleaning it up.

Does nothing at all. Can't use when there is no menu entry. Useless!

Would like the menu item but.. Great job!!