Jetpack is a Mozilla Labs project that enables anyone who knows HTML, CSS, and JavaScript to create powerful Firefox add-ons.
The Jetpack Gallery is a community for developers and add-on users: Users get innovative add-ons that add functionality to Firefox, while developers receive valuable feedback and visibility in the Jetpack community.
Allow to move up on parent URLs
Reload CSS without having to refresh the page.
Save tabs open as a group and reopen all with a click
Do you want to share a Jetpack you’ve created?