Anything that can help spontaneous or batch-clicking internet-surfer.
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).
Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.
Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.
Monitor pages and feeds for changes. Get alerts for important changes.
Notifies when websites are changed and highlights the changes since last visit.
A nifty tool which allows you to clip out portions of webpages and reload them later to check for updates.
Fox Notifier check for updates in real-time and notify you when new updated contents comes from your favorite websites feeds and from your Facebook & Twitter pages.