Here is how you can get a stick ticker in your Firefox browser (works with 1.0 – 2.0.0.* versions):
Go to https://addons.mozilla.org/en-US/firefox/addon/183
Click on the green ‘Add to Firefox’ button
Click “Install” on the window that pops up
Restart Firefox to see the ticker appear.
Right-click on the ticker to Edit/Add your favorite stocks
Enjoy!