What I mostly use

by LionSpark

30 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,920 reviews

19,418,734 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 5,443 reviews

4,496,130 users

The easy way to download and convert Web videos from hundreds of YouTube-like sites.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,590 reviews

1,321,496 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 955 reviews

1,207,532 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,490 reviews

2,078,029 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.

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 491 reviews

913,084 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 2,515 reviews

887,500 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 164 reviews

449,102 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)".

Password Exporter by Justin Scott (fligtar), Jorge Villalobos

Rated 4 out of 5 stars 316 reviews

174,010 users

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

Spanish (Spain) Dictionary by tnarik, RickieES

Rated 4 out of 5 stars 107 reviews

229,845 users

Spanish/Spain Dictionary

FXChrome by dkgo

Rated 4 out of 5 stars 691 reviews

131,265 users

A Chrome-like theme for Firefox.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 333 reviews

143,068 users

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

Download Manager Tweak by squashr1979, andman42

Rated 4 out of 5 stars 403 reviews

79,139 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

65,204 users

Diccionario para México.

Quick Locale Switcher by ppclick

Rated 3 out of 5 stars 81 reviews

156,551 users

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.
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