YouTube Download Requires Restart
Note from Mozilla: This add-on has been discontinued. Try Video DownloadHelper instead.
Download YouTube - The best YouTube video and music downloader for Firefox.
A quick and minimalistic way to create bookmarks.
ClassLink provides secure and simple single sign-on access to all your apps, files and classes from anywhere.
Pearltrees lets you organize all your interests.
Open Bookmarks in New Tab Requires Restart
After you installed this addon to your Firefox, bookmarks are opened in new tab always.
Bookmark Deduplicator just provides an easy way to remove duplicate bookmarks.
Sync tabs and firefox bookmarks, send webpages, directions, numbers, text and images directly to your mobile devices.
Update Scanner Requires Restart
Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.
NewsFox Requires Restart
NewsFox is an efficient 3-pane(email) style Atom/RSS feed reader.
Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks
Customize your New Tab Home Page in Firefox with this powerful (cloud-based) add-on.
Organize all your Bookmarks/Websites, RSS/News feeds, notes, to-do's, mail & social updates in one place.
Works on any PC, mobile or tablet device.
Add Bookmark Here ² Requires Restart
Add a menuitem "Add Bookmark Here..." to Bookmarks...
SEO Status PageRank/Alexa Toolbar Requires Restart
See Google Pagerank (PR) and Alexa rank for each website you visit. Simple and customizable. You can see and use everything the toolbar offers, or strip it down to the bare essentials and place it in the status bar. Simple, quick, and very useful.
Instant loading site onlinezakladki.ru while opening a new tab. Your favorite sites are always handy. You can go to them with a single click.
P.S. When this add-on will be uninstalled, it resets all edited settings on the default settings.
FavIcon Reloader up to FF 48 only Requires Restart
FavIconReloader reloads Favourite Icons by retrieving information from all bookmarked web sites.
ScrapBook X Requires Restart
Helps you save web pages and organize your collection. This addon is based on ScrapBook by Gomita and ScrapBook Plus by haselnuss.
Todoist is the beautifully simple to-do list built to help you do more and stress less.
Watch these intro videos 30 sec
Add to Wunderlist is the easiest way to save anything from the web to your Wunderlist.
Feedly - Beyond Google Reader Requires Restart
A productive way to organize, read and share the content of your favorite feeds, blogs and news sites. Feedly offers a seamless transition from Google Reader.
AddThis Requires Restart
AddThis for Firefox is the best add-on to make sharing and bookmarking simple. Have all your favorite web 2.0 social networking, bookmarking, blogging, and e-mail services at your fingertips. Share any page, anytime, with anyone.