I installed it on the advise of a friend and the tree suddenly started flickering! I disabled Tree and other common extensions and it stopped. I put all of them back on and it has not been flickering. I am not sure what caused it.

请给它增加一个快速打开关闭侧栏的快捷键，谢谢。

j'adore le concept en arborescence, car ma pensée intuitive fonctionne de cette manière. par contre ce serait tellement bien de pouvoir choisir des couleurs pour s'y repérer comme dans edge. Je vais pas utiliser un navigateur microsoft pour ça, mais j'en connais certains qui ce sont fourvoyé juste pour leur super fonctionnalité d'organisation des onglet lateraux. en tout cas merci pour cette appli qui est dejà top!

I literally swapped to firefox for this extension...

Unable to bookamrk

I am extremely pleased with this add-on. I have one bigger complaint that might be worth looking into - it works well on all websites except youtube. When I have the sidebar open, it cuts off part of the youtube website - for example in opened video, I can't view the first letter of the title or profile pictures of commenters.

Great extension. It really helped me browse the web more organized and I can switch to multiple tabs more quickly.

It had a really good impact on my productivity and the add-ons for this extensions are also great.

Consistent with the host, but lacks functionality that http://addons.mozilla.org/firefox/addon/sidebery provides.

I would like to make one suggestion for improvement:It doesn't make sense that among the links opened in a newly opened tab, the last opened link is automatically listed at the end. Because the last page you open is definitely the one you want to see most, and this extension automatically takes the last page you open at the end, so it's a step of moving the mouse. The correct way to open a link is to open it near the "parent" tab, which is to the right of the "parent" tab. The first link opened from the "parent" tab should be at the end, which is much better.
我希望能提一个意见改进：在一个新打开的标签中打开的链接中，最后打开的链接会自动排列在末尾，这是不合理的。因为最后打开的页面肯定是自己最想看到的，而这个扩展却自动把最后打开的页面拍在最后面，这样多了一步移动鼠标的动作。正确的链接打开的方式应该是在靠近“父”标签页打开，就是在“父”标签页右边打开。而最先从“父”标签页打开的链接应该拍在最末尾，这种方式打开要好的多。