Дополнения

DownThemAll! от Nils Maier, Federico Parodi, другие

The first and only download manager/accelerator built inside Firefox!

DownThemAll! AntiContainer от Nils Maier

Make the resources behind container pages easily downloadable by DownThemAll!

Tab Wheel Scroll от Matt H

Переключается между вкладками при прокрутке колесика мыши в панели вкладок

Colorific от Peter J. Sloetjes, MSc.

Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.

Примечание подборщика If Owl doesn't work for you, this might.

Controle de Scripts от Fernando Pereira Silveira

Controle de Scripts is an extension that allows you to control what JavaScripts do on your browser.