What I mostly use

by LionSpark

30 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,818 reviews

21,725,126 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).

Video DownloadHelper by mig

Rated 4 out of 5 stars 4,894 reviews

5,652,071 users

The easy way to download and convert Web videos from hundreds of YouTube-like sites.
This works also for audio and picture galleries.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,549 reviews

1,503,196 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,454 reviews

2,290,522 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.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 933 reviews

1,374,341 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 474 reviews

1,112,333 users

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.

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,475 reviews

1,033,624 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.

United States English Spellchecker by jooliaan

Rated 3 out of 5 stars 156 reviews

537,004 users

United States English Spellchecker for Firefox, Thunderbird and SeaMonkey by Kevin Atkinson and Geoff Kuenning.

To enable, right-click in a multi-line text box, select "Languages", then "English (United States)".

Spanish (Spain) Dictionary by tnarik, RickieES

Rated 4 out of 5 stars 106 reviews

283,030 users

Spanish/Spain Dictionary

Password Exporter by Justin Scott (fligtar), Jorge Villalobos

Rated 4 out of 5 stars 296 reviews

188,893 users

This extension allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

164,841 users

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

FXChrome by dkgo

Rated 4 out of 5 stars 664 reviews

165,615 users

A Chrome-like theme for Firefox.

Download Manager Tweak by squashr1979, andman42

Rated 4 out of 5 stars 396 reviews

99,619 users

Allows the download manager to also open in a tab or sidebar, and adds some optional display changes.

Diccionario español México by eduardo_moreno

Rated 4 out of 5 stars 75 reviews

73,704 users

Diccionario para México.

Add-on Compatibility Reporter by Mozilla

Help make Firefox better. The Add-on Compatibility Reporter enables you to report if the Firefox add-ons that you're using are working properly.
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