These are addons that I have bookmarked for possible use in the future.
Keeps track of the state of your inbox from your toolbar. Stay abreast of new emails and access them quickly through this simple but useful add-on.
Puts all your tabs into a list, freeing memory without losing any information. Open-Source and very lightweight.
Click the icon or press Ctrl-Alt-T/Cmd-Option-T to "grenade" the tabs.
Customize Your Web (CYW) let's you customize your favorite websites with just a few clicks. What Greasemonkey is for developers is CYW for non-developers. You can remove/rearrange /modify elements, add keyboard shortcuts and do many other things.
Browse your bookmarks visually: create, edit, and manage preview images for all your bookmarks. Use bookmark images as a speed dial on newly opened tabs. Quickly transfer bookmarks, links and texts to your mobile phone using QR codes.
Personas Expression adds a lot of customizable visual styles to Personas themes.
You can design your browser more completely.
Will You Become The Stylist Of Browser?
This extension makes the URL Address Bar font size bigger. Best for large display monitors. Now has option to hide toggle button. No need to know CSS or any hand coding to style the font-size, like other extensions! Just Install and Enjoy!
Move Firefox Button to anywhere you want, and make it also available in Full Screen mode, or when Menu Bar is showing.
This will remove all the restriction and the limits you have in the networks when downloading files. You need a Download Manager add-on such as DownThemAll to download files but you can use this add-on alone to watch streaming videos, documents ect..
Install this extension to instantly view your WordPress.com notifications, follow sites, and start new blog posts quickly and easily from your browser toolbar.