Estensioni più popolari


Provider for Google Calendar Riavvio richiesto

Allows bidirectional access to Google Calendar

Assegnate 4 su 5 stelle (1.008)
344.100 utenti

User Agent Switcher Riavvio richiesto

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Assegnate 4 su 5 stelle (265)
333.804 utenti

Xmarks Sync Riavvio richiesto

NOTE: Xmarks lives! Learn more at . Xmarks is the #1 bookmarking add-on. Keep your bookmarks, passwords and open tabs backed up and synchronized across computers and browsers.

Assegnate 4 su 5 stelle (2.580)
308.205 utenti

Easy Youtube Video Downloader Express

"#1 Rated Firefox Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.

Assegnate 4 su 5 stelle (975)
306.696 utenti

YouTube Flash Video Player

YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.

Assegnate 5 su 5 stelle (51)
289.232 utenti

YouTube High Definition

YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

Assegnate 5 su 5 stelle (242)
289.071 utenti

Session Manager

Salva e ripristina lo stato di tutte le finestre.

Assegnate 4 su 5 stelle (486)
286.813 utenti

Full Web Page Screenshots (♥♥♥♥♥) Riavvio richiesto

FireShot makes full web page screenshots. Demo:

Screenshots can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

Assegnate 5 su 5 stelle (464)
283.701 utenti

Personas Plus

Personas (now known as lightweight themes) are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite themes.

Assegnate 3 su 5 stelle (933)
278.541 utenti

FoxyProxy Standard Riavvio richiesto

FoxyProxy è uno strumento di gestione avanzata dei proxy che sostituisce completamente la gestione dei proxy di Firefox. Offre molte più funzioni delle estensioni SwitchProxy, ProxyButton, QuickProxy, xyzproxy, ProxyTex, TorButton, etc

Assegnate 4 su 5 stelle (363)
270.355 utenti

NetVideoHunter Riavvio richiesto

This add-on is a downloader that lets you easily download videos from sites like Youtube, Facebook, Metacafe, Dailymotion, Break, VKontakte and music for example from SoundCloud, Grooveshark and from many other sites...

Assegnate 4 su 5 stelle (390)
261.970 utenti

ColorZilla Riavvio richiesto

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Assegnate 5 su 5 stelle (312)
257.166 utenti

HTTPS Everywhere Riavvio richiesto

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.

Assegnate 4 su 5 stelle (120)
245.057 utenti

Download Status Bar

Se siete una persona che ama avere il controllo totale di ogni aspetto dei propri download, Download Status Bar è proprio l'estensione che stavate cercando!

Assegnate 5 su 5 stelle (331)
233.459 utenti

ColorfulTabs Riavvio richiesto

The first addon you should be installing on a fresh Firefox install. A must have. The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color.

Assegnate 4 su 5 stelle (1.014)
233.197 utenti Downloader (music/videos/photos @ VK) Riavvio richiesto

Download music, videos and photos from / One-click download, natural filenames, displaying file size and bitrate for music, downloading HD video, downloading HQ photos. No spam, no usage of your account, no spyware.

Assegnate 4 su 5 stelle (547)
227.058 utenti

MinimizeToTray revived Riavvio richiesto

Minimizes windows into the system tray.

Assegnate 5 su 5 stelle (327)
223.202 utenti

LookOut Riavvio richiesto

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).

Assegnate 4 su 5 stelle (150)
210.418 utenti

SQLite Manager Riavvio richiesto

Manage any SQLite database on your computer.

Assegnate 4 su 5 stelle (58)
195.155 utenti


NOTE: Users should be aware that this add-on represents an older fork. The original developer of uBlock is continuing to actively develop the newer fork uBlock Origin.

Assegnate 4 su 5 stelle (224)
174.424 utenti