Basic Restartless Addons
9 Add-ons in this Collection
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).
Firebug by Joe Hewitt, Jan Odvarko, others
THIS ADD-ON IS NO LONGER UPDATED PLEASE USE THE BUILT IN PDF VIEWER.
Pretty-prints JSON content in the browser for easy, unobtrusive viewing.
An indicator showing HTTP/2 and SPDY support in the address bar.
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
Right-click on a link to instantly open it in Private Browsing mode. (Or right-click anywhere to quickly open private browsing mode.)
Adds a small badge to your tabs to alert you to (for example) new messages on Facebook. The badge is also visible when the tabs are pinned so you can see when there's something new available.