Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.
Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on...
AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.
Adds the ability to create and edit entries in the password manager.
UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.
TinEye is a reverse image search engine. The plugin adds a context menu item that allows you to search for an image to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.
Block downloads, lock down bookmarks/addons/downloads with a password.
Russian spellchecking dictionary
Создан на основе словаря Лебедева. Файл аффиксов постепенно переписывается, словарь ежедневно пополняется. Релиз выкладывается один раз в месяц первого числа.
A useful tool for downloading flv, movies / music from your favorite websites such as Youtube, Google Video, Pornotube, Grinvi, Putfile, RedTube, Dailymotion ,Metacafe, Trilulilu, PornHub, RedByte, Tube8 and all the others. Also, please review.
Tool to circumvent silly Russian political censure. Thanx to developers of opera add-on. Everything needed to write this add-on has been taken from opera one. Too bad developers was not collaborative and ignored all e-mails.
Opens all images from a page into a new tabbed window. Great for image focused sites like reddit, 4chan, tumblr etc.
Collections are groups of related add-ons that anyone can create and share.Explore Collections