ClickTabSort by PKxk8J

You can sort tabs from the right click menu on tabs.

Sort orders are

• URL
• Tile
• Opened date
• Accessed date
• Random
• Reverse

* Opened dates are reset when Firefox starts.
* Accessed date orders work with Firefox 56 or later.

Pinned tabs are sorted when the right click menu is opened on pinned tabs.
Optional notifications show progress.

For addons developers:
You can use this addon through sendMessage.
For details, see README.