Screengrab! saves webpages as images.
New features: upload to internet
Allows Firefox to reload multiple images that failed to be displayed.
Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
Paint your firefox white. Make it look simpler, nicer.
For Beta users, please download the latest development version.
Autofill is a small but powerful add-on that serves one purpose: fill form fields automatically on page load. It is for people who just want a straightforward form filler without all the bells and whistles.
Notifier for gmail, yahoo, hotmail, aol and more webmails.
X-notifier(aka WebMail Notifier) checks your webmail accounts and notifies the number of unread emails...
Supports : gmail, yahoo, hotmail, POP3/IMAP, facebook, twitter and more
Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!
Translate the whole entire page or just a selection using Google Translate.