The functionality is exceptional, with numerous options for controlling side tabs' behavior and organizing them.

The best browser add-on! I can't imagine how I used to live without him. It's amazing why no browser has such functionality built in.

Incredibly useful extension. Thanks for the quick fix with 3.9.22!

Can't live without this add-on! Seriously!

The management tool for all my tabs I have been waiting for. Using it for years and still love it. Awesome.

Отличное дополнение. У кого не работает с 30 января 2024 - переустановите

"Important Note: This version contains fatal issue on the startup. There is a workaround: grant an optional permission "Read and modify bookmarks" for this addon via the addons manager UI. The next release will become working without the permission."

Great extension and the latest issue has a workaround provided by the developer.

Quickly fixed after a faulty patch.
Awesome extension.
Has made my tab hoarding problem much worse.
100% recommended

thanks to the people in the reviews for showing the workaround for the bug in the latest update.

With update 3.9.21 it just doesn't work. It doesn't show any tab in the tree when I first lunched Firefox, and left clicking the icon on the toolbar does nothing. Sometimes I managed to open again the extension by disabling and enabling it again, but tabs still won't show. I rolled back to 3.9.20 and it works well again (if memory gives me problems, I'll roll back to 3.9.19). Still, I want to give you 5 stars since I know you will fix this and I love the extension, thank you for it!

Edit: I updated to 3.9.22 and it's fixed, thanks!