Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Collector's Note One of the best Firefox add-ons EVER! Can't live without it.
Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.
Collector's Note Can't live without it. Adds customizable preferences and functionality to tabbed browsing that goes beyond the built-in tab preferences native to Firefox.
FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.
Check out my new project, FireSSH!
Use the Evernote Web Clipper to save things you see on the web into your Evernote account.
Collector's Note If you use Evernote for web clippings and note-taking, this one-click add-on is essential.
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Collector's Note Since I do a lot of work with the design and functionality of web applications for schools, I often need to know the pixel size of sections on a web page -- especially to resize images. This add-on is perfect and simple.
Save an image of a web page (including Flash content) to a file. Web page screenshots may be captured interactively or from the command line. Options allow you to control the output format (PNG or JPEG), image file name, scaling, and much more.
Allows you to resize the window to specific dimensions.
NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.
Collector's Note Want to resize your browser window to a certain pixel ratio? This makes it dead simple and highly customizable. Right click, choose the window size, and you're done!
Defragments your Firefox "Places" database (history/bookmarks)
This greatly reduces the lag while typing in the address bar and the start-up time.
This extension features configurable automatic cleaning, periodic reminder, and internationalization.
Add useful extra features to Gmail, like hierarchical labels, an unread message icon on your browser tab, file attachment icons, and more.
Collector's Note As a Lifehacker addict, I always try out Gina Trapani's add-ons.
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
Thanks Tekzilla for your awesome review! Click here to see their video: http://youtu.be/BUDqWrJ-Vao
Enable multi-color highlighter and post-it notes as your reading aids; Capture the whole page or any portion to share or archive; Save everything online to allow access anywhere. See Youtube http://bit.ly/g5GvDw
Collector's Note One of the best social bookmarking and annotation tools available on the web. There are even settings to sync bookmarks and tags to Del.icio.us.
This extension adds a new "FaviconizeTab" option to the context menu of the tab...
Makes Twitter Better!
Collector's Note As the description says, "Makes Twitter better."
Note from Mozilla: This add-on has been discontinued. Try WebMail Notifier instead.
The original notifier for Gmail.
Collector's Note I have multiple Gmail accounts, and this keeps them organized. Very easy to switch between accounts.
Collections are groups of related add-ons that anyone can create and share.Explore Collections