Really useful extensions for Firefox by Artem S. Tashkinov

by Artem S. Tashkinov

50 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,947 reviews

19,408,779 users

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).
Collector's Note Replaced with uBlock

YouTube High Definition by Baris Derin

Rated 5 out of 5 stars 238 reviews

435,763 users

YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,831 reviews

1,207,084 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,622 reviews

2,188,712 users

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
Collector's Note Wanna disable it, since Adobe Flash doesn't run by default any more.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,017 reviews

1,181,674 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.
Collector's Note I'm using it with the following user scripts: * Apple Trailer Download HD+ [disabled, unmaintained] * Facebook Link Tracking Disabler * googleInEnglish * Google Tracking-B-Gone * SaveTube [isebaro dot com]

Flagfox by Dave G

Rated 5 out of 5 stars 679 reviews

475,029 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 63 reviews

188,965 users

Manage any SQLite database on your computer.
Collector's Note [Disabled]

VKontakte.ru Downloader (music/videos/photos @ VK) by Sergey Kolosov

Rated 4 out of 5 stars 569 reviews

200,039 users

Download music, videos and photos from VK.com / vkontakte.ru. One-click download, natural filenames, displaying file size and bitrate for music, downloading HD video, downloading HQ photos. No spam, no usage of your account, no spyware.
Collector's Note [Disabled] I have a separate profile for VK now.

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 454 reviews

557,119 users

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Password Exporter by Justin Scott (fligtar), Jorge Villalobos

Rated 4 out of 5 stars 371 reviews

211,193 users

This extension allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.
Collector's Note [Disabled] I'm a bit scared to have it enabled all the time.

Cookies Manager+ by V@no

Rated 5 out of 5 stars 67 reviews

102,680 users

Cookies manager to view, edit and create new cookies. It also shows extra information about cookies, allows edit multiple cookies at once and backup/restore them.

ReloadEvery by Jaap Haitsma

Rated 4 out of 5 stars 720 reviews

147,470 users

Reloads web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via tab context menu (right click on the tab)

µBlock by Chris Aljoudi

Rated 4 out of 5 stars 229 reviews

159,881 users

NOTE: Users should be aware that this add-on represents an older fork. The original developer of uBlock is continuing to actively develop the newer fork uBlock Origin.
Collector's Note Some Adblock+ features are solely missing: like per rule management and counter.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 172 reviews

132,822 users

View HTTP headers of a page and while browsing.

UnMHT by arai_a

Rated 5 out of 5 stars 232 reviews

92,927 users

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.
Collector's Note Why isn't it built-in still?
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