8 Add-ons in this Collection
Firebug by Joe Hewitt, Jan Odvarko, others
Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.
The Web Developer extension adds various web developer tools to the browser.
Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!
Visual bookmarks for Firefox. (Works with all latest versions of Firefox)
Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
What are Collections?
Collections are groups of related add-ons that anyone can create and share.Explore Collections