Mozilla Firefox and Thunderbird Add-ons

by David July

32 Add-ons in this Collection

uBlock Origin by Raymond Hill

Rated 5 out of 5 stars 840 reviews

3,050,983 users

Finally, an efficient blocker. Easy on CPU and memory.

Download YouTube Videos as MP4 by ialc

Rated 4 out of 5 stars 454 reviews

1,075,603 users

An extension that adds direct links to download YouTube videos as MP4 and FLV. It has a simple interface and it downloads videos directly from YouTube. The extension integrates with YouTube's interface and adds a download button below the player.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,832 reviews

1,210,808 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,624 reviews

2,201,579 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.

HTTPS Everywhere by EFF Technologists

Rated 4 out of 5 stars 127 reviews

313,123 users

Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.

Stylish by userstyles.org

Rated 4 out of 5 stars 882 reviews

435,142 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,637 reviews

783,688 users

Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.

Flagfox by Dave G

Rated 5 out of 5 stars 679 reviews

475,368 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...

Self-Destructing Cookies by Ove

Rated 4 out of 5 stars 566 reviews

203,869 users

Fix the web. Gets rid of a site's cookies and LocalStorage as soon as you close its tabs. Protects against trackers and zombie-cookies. Trustworthy services can be whitelisted.

Classic Theme Restorer by Aris

Rated 5 out of 5 stars 1,167 reviews

422,883 users

Squared tabs, appmenu, add-on bar, small button view and many more 'old' features for Firefox 29+ (Windows / MacOSX / Linux).

All builds & changelogs on versions page!

Screengrab (fix version) by Oleksandr

Rated 5 out of 5 stars 318 reviews

128,387 users

Screengrab! saves webpages as images.
0.99 released!
New features: upload to internet

ScrapBook by Gomita

Rated 4 out of 5 stars 879 reviews

143,322 users

Helps you to save Web pages and organize the collection.

TT DeepDark by steva

Rated 5 out of 5 stars 179 reviews

49,412 users

Collector's Note Thunderbird

UnMHT by arai_a

Rated 5 out of 5 stars 232 reviews

94,267 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.

Download Manager (S3) by Oleksandr

Rated 5 out of 5 stars 311 reviews

92,557 users

View and manage downloads from a tidy statusbar

This is a new life in Firefox 26+ for old well-known addon Download Statusbar

New Features: Replace Downloads Library page.
Now you have full control of your downloads history!
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