[Timpy]

I like this because it organizes my tabs in the same way I do mentally... however it doesn't actually reorder my tabs. What I mean is, Ctrl+Tab surfing through my tabs doesn't iterate the list as it is displayed sequentially.

[idm]

I recommend the Multi-Account Containers extension by Mozilla, which has a "sort tabs" button that accomplishes what you want.

https://addons.mozilla.org/en-US/firefox/addon/multi-account...

I am not sure why this functionality is a separate extension - this is a bit confusing - but it's working for me.

[Timpy]

I'm using Multi-Account Containers, I never paid attention to the Sort Tabs button. This is great! I'm looking for a keyboard shortcut for it now.

[maciekmm]

I am planning to add automatic tab sorting to the plugin. There's a github issue for this exact problem. I just didn't have time to implement this feature. ;)