Дополнения

DownThemAll! от Nils Maier, Federico Parodi, другие

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

FlashGot Mass Downloader от Giorgio Maone

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.

Download Status Bar от Szalgiris

If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.

Mozilla Archive Format, with MHT and Faithful Save от Christopher Ottley, Paolo Amadini

— 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!

Thumbnail Zoom Plus от David Adler

Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.

Image Zoom от Jason Adams

Adds zoom and rotation functionality for images...

Linkification от y5

Converts text links into genuine, clickable links...

Toolbar Buttons от Button Guy

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Private Tab от Infocatcher

Добавляет приватные вкладки.

URL Fixer от eyeo GmbH

URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like "google.con" or "youtube,com". You have the option of being asked to confirm corrections before they are applied.

Console² от Philip Chee, zeniko

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console. From v0.5 includes the Console Filter extension previously available separately from the Console² website.

Firefox v2 by CP от Crazy Psychiatrist®

Seahorse by CP от Crazy Psychiatrist®

Hunters of ducks by CP от Crazy Psychiatrist®

Bridge over the sea by CP от Crazy Psychiatrist®