(Note, I previously gave this a 1/5 rating because it was consuming a lot system resources & making my browsing virtually impossible). However, after much experimentation with the other addons, it turns out, the cause was another extension for youtube that was interfering with this addon. Upon removal of that extension, oneTab is working just fine. So thank you to the devs. My one complaint is that its UX is quite strange, I would have liked to be able to save the tabs (which we can rename already) and move between the groups, similar to GroupTabs. Regardless, I am taking my time to get used to this addon. Thanks again. Rating revised.

fantastic tool!

O Quantum está sensacional! O Mozilla Firefox voltou ao lugar que merecia no ranking dos navegadores! Parabéns!

Wonderful add-on with neat features.

非常好用的标签页管理插件，不过从学习使用上来讲，可以在新安装时增加间短的新特性使用说明。

Finally OneTab revive! However, it may lost multi-account container information when restoring tabs.
Overall, it's awesome!

Saves Related Tabs into Manageable Groups that Can Be Named, Locked, Starred & Exported/Imported. It Works.

Great application! Excellent in helping with web searches and especially how to organize bookmarks.

Works like the tab saver in microsoft edge but much better. Keep up the great work.

節省很多記憶體

Love this extension. I use it to keep my usual tabs all in one place but without having to suck up memory while using only 1 or 2 or 5 of the many. It collapses all tabs into one page of links so they don't all have to stay open when not using them but keeping them handy. Even after reboots and crashes (which firefox seems to do a LOT since the quantum update).

This is my most used add-on, it hasn't caused me any problems and I rely on it heavily. Adding a sync feature that worked with the firefox account would be incredibly useful.

Fantastic for keeping track of open tabs.

It's nice & neat! It will be better if support drag & drop groups around to re-order them.

its happens again!!!!. on firefox onetab lost all my data. So onetab and firefox dont care about us users.

超棒，瀏覽網頁、整理資料更有效率！！

Very good and useful addition!

good addons

easy covient

i wish if you add send right(left) tabs to one tab and send all tabs to one tab except this tab.