Mozilla Firefox and Thunderbird Add-ons

by David July

30 Add-ons in this Collection

uBlock Origin by Raymond Hill

Rated 5 out of 5 stars 546 reviews

1,221,528 users

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

Download YouTube Videos as MP4 by ialc

Rated 4 out of 5 stars 411 reviews

1,038,822 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 1,753 reviews

1,250,775 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,579 reviews

2,068,288 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 81 reviews

189,002 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.

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,599 reviews

803,106 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 655 reviews

495,951 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 501 reviews

189,484 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 1,111 reviews

422,837 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!

Stylish by Jason Barnabe

Rated 4 out of 5 stars 817 reviews

460,675 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.

Screengrab (fix version) by Oleksandr

Rated 5 out of 5 stars 291 reviews

137,393 users

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

Download Manager (S3) by Oleksandr

Rated 5 out of 5 stars 290 reviews

99,265 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!

ScrapBook by Gomita

Rated 4 out of 5 stars 866 reviews

150,159 users

Helps you to save Web pages and organize the collection.

UnMHT by arai_a

Rated 5 out of 5 stars 224 reviews

91,613 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.

TT DeepDark by steva

Rated 5 out of 5 stars 173 reviews

43,855 users

Collector's Note Thunderbird
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