It has issues when remembering specific websites.
The set for this tab setting doesn't work on shutdown.

I might use this for remembering time stamps for exact matches, but that's really it.

If you want an addon that might work a bit better, try custom tab title and favicon
The favicon setting doesn't really work though for it.
I use usercontent.css for that.

unfortunately only sets a temporary title. as soon as you go to another page and come back it resets to the original title, so that makes it useless. trying to set the title a second time does nothing

Brazilian Portuguese

Esta extensão é excelente para fazer o rastreamento de horas em aplicativos que leem os titulos das janelas. Eu uso uma expressão regular para introduzir o dominio no título.

English

This addon is great for tracking time apps that can read the windows title. I use regex for ripping the domain from url.

This is exactly what I've been looking for, thank you Lazyuki! Domain level titling does work!

I only use the feature to temporarily rename a tab, but that works flawlessly. It'd be nice to have a "Rename tab" option in the context menu for a tab. If that's available, I couldn't find it in the options.

Really useful extension sometimes. Do wish it was available on Firefox for Android

It does what it says for the most part, but for me the new tab title doesn't persist between sessions like it says. When I rename a tab and chose the "Set for this tab" option, and then close and reopen firefox, the tab title has reverted back to it's original value. If the renamed tab title would actually persist between Firefox sessions this add-on would be very useful for me. I'm gonna try some tab stickies add-ons instead for now.

It would be awesome to allow to set title by just double clicking on the tab name, or within the tab context menu.

Don't work, tab title don't change.

Did it with "This time only" but this Add-on is not able to that for a specific url!! It just renames other tabs as well and then having several Tabs with the same name!

update: 20/09/2024. IT DOES NOT WORK AT ALL!!! WHY? BECAUSE THE CHANGE OF TITLES I MADE ONLY FOR A FEW PINNED TABS DOES NOT STAY FROM ONE SESSION TO THE NEXT!!!
I HAD SELECTED SET FOR THIS TAB!!!
THEREFORE, THIS ADDON IS COMPLETELY USELESS!!!

It works except for the New Tab when I want to rename this New Tab. Even when I select "Set for this tab", it is impossible to rename a particular New Tab with a different title!

頻繁に正規表現置換機能が止まってしまう不具合があるものの、これはとても便利。
　長ったらしいヤフオクのタイトルを、邪魔な部分だけ正規表現で取り除く事ができた。ドメイン単位での自動置換だけでなく、そのタブだけ名前を変える事ができるのもありがたい。
　正規表現はスペースを入れるとダメみたい。「\s」でも上手く行かず。`.`で代用した。

動作が途中で止まった場合はアドオンを一旦無効化し再起動する必要がある。ブラウザ再起動後、以前のプロファイルを読み込んだ場合には、ほぼ必ず機能停止している。

great addon, hope it keeps working with future firefox versions!