Excellent add-on, very effective and easy to use. It has never failed me. If you miss the dark mode, just use Dark Reader.

Monochromatic icon for dark and light themes are needed. Please some automatic backup should be there.

Шикарное дополнение! Работаешь ты с 100 вкладками. И тебе надо, что бы как то запомнились, во первых, все эти 100 ссылок разом. Во вторых, что бы в той же последовательности, как они у тебя открыты сейчас. Раз - нажал и всё. Удобно. Через пол года или год нашёл этот список ( ему тут можно дать имя), нажал на Открыть список. И вуаля! В общем, шикарное дополнение!
Вот только после очистки Firefox не могу найти, где вся ранее мной записанная информация за два года пользования мной этим плагином. Ищу с вчерашнего дня, не могу понять, откуда восстановить всё это. Два года коту под хвост!

Brilliant. I had 109 tabs open and I could not find a fast and easy way to move them to my new PC ... until I found this extension. Simple-as extension, pure gold in my case. Go, install it to see what it can do for you.
It looks scary at first as it closes all tabs and presents you with 1 page full with the URLs but you can easily restore. Or in my case export which is in txt format, then I wrote a draft email, opened the draft on my new PC, copy&paste into OneTab's import window, done. OneHappyDude :)

Is this open source? If yes whats the link?

This addon is very useful, but could there be option to not automatically focus to OneTab tab once browser is just started?

Why does Mozilla insist on keeping its pages as bright as the sun?
Please don't follow in their footsteps. This is a great extension but the white background is killing me here.

I'll (without hesitation) give this extension a 5-star rating since it makes the Firefox UX that much better, but give us some sort of dark background!

Please include a dark mode and search function.

A very nice and useful addon, but that white kills the eyes. Please add a simple color chooser for both foreground and background, please.

I love this extension. Sometimes I will have 30 tabs open when researching or working on a project. I don't want to close them because I want to come back to them later. This extension takes them and saves them for you so you can return to them all in one click. It is truly my favorite extension!!!!! I would give it 100 stars if I could!!!

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Information about container is not stored. Tabs aren't restored in container tab like work/media/shopping/…
Missing search/filter input box.