I'm using this with the CSS hacks to customize the userChrome, and it's a much better web experience than default browsers. This extension is pretty neat, and does what's needed without using too many resources or getting in the way.

Please add a function to force update favicons for all bookmarks.

We like the old fashion.

Absolute crucial for us who have more than 10 tabs open at the same time. 10\10 extension!

请问侧边栏的宽度可以调节吗

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This is the ultimate tab management über-extension for Firefox. It is one of the two main reasons for using Firefox. (The other is Tridactyl.) It is so useful in managing a large number of tabs that I couldn't go without it, especially after I assigned keyboard shortcuts to its many different actions.

Sidebery is to Firefox what a critical medicine is to a pharmacy. Get it, learn it, and use it. It's a complete game-changer.