Dark Reader
Tema escuro para todos os sites. Cuide dos seus olhos, use o Dark Reader para navegação noturna e diária.
1 164 679 utilizadores
AdGuard AdBlocker
Adguard Ad Blocker bloqueia com eficiência todos os tipos de anúncios em todas as páginas da web, até mesmo no Facebook, Youtube, e outros!
1 088 940 utilizadores
YouTube High Definition
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
162 981 utilizadores
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
125 470 utilizadores
LeechBlock NG
LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
68 665 utilizadores
SoundFixer
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
46 138 utilizadores
Tomato Clock
Tomato Clock is a simple browser extension that helps with online time management.
36 127 utilizadores
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
705 563 utilizadores
I don't care about cookies
Get rid of cookie warnings from almost all websites!
317 077 utilizadores
Greasemonkey
Customize the way a web page displays or behaves, by using small bits of JavaScript.
195 320 utilizadores
Absolute Enable Right Click & Copy
Force Enable Right Click & Copy
90 473 utilizadores
User-Agent Switcher
Easily override the browser's User-Agent string
65 738 utilizadores
Cookie Quick Manager
An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
63 342 utilizadores
Popup Blocker Ultimate
Best Pop-up Blocker for Firefox. (Best in Rating, Performance, This addon does NOT collect user's data same as Poper Blocker)If your Firefox version is not 57+ please install version 8.1 from Official website.
61 748 utilizadores
Adblock para o Youtube™
Adblock Popular para Youtube Extension ™ : Remove os anúncios em vídeo do Youtube™ .
49 272 utilizadores
Mate Translate – tradutor, dicionário, translator
Selecione texto e traduza-o com um atalho entre 103 línguas.
34 554 utilizadores
RESTClient, a debugger for RESTful web services.
RESTClient has been completely rewritten for compatible with Firefox 57. Some functions are still missing (OAuth & OAuth 2.0 authentication).
33 698 utilizadores
uBlacklist
Blocks sites you specify from appearing in Google search results
31 963 utilizadores
Youtube Audio
Stream just the audio from YouTube to save bandwidth and battery life
30 243 utilizadores
h264ify
Makes YouTube stream H.264 videos instead of VP8/VP9 videos
26 475 utilizadores
10ten Japanese Reader (Rikaichamp)
Quickly translate Japanese by hovering over words. Formerly released as Rikaichamp.
22 207 utilizadores
BlockTube
YouTube™ Content Blocker Block channels and videos from YouTube™ Fast and easy
19 587 utilizadores
Redirector
Automatically redirects to user-defined urls on certain pages
16 602 utilizadores
Impulse Blocker
Block distracting websites. Just list the sites you want Impulse Blocker to pause or completely avoid.
16 122 utilizadores
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
14 715 utilizadores