Populairste extensies



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.

Waardering 4 van 5 sterren (224)
170.494 gebruikers

SaveFrom.net helper all-in-1 / youtube downloader

SaveFrom.net helper will enable you to download files from YouTube.com, FaceBook.com, Vimeo.com, Daylimotion.com, VK.com, Odnoklassnoki.ru, Soundcloud.com and more than 40 other just in one click.

Waardering 4 van 5 sterren (244)
166.797 gebruikers

Enigmail Vereist herstart Aanbevolen

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Waardering 4 van 5 sterren (195)
155.170 gebruikers

Mozilla Archive Format, with MHT and Faithful Save Vereist herstart

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

Waardering 4 van 5 sterren (318)
155.144 gebruikers

Image Zoom Vereist herstart

Adds zoom and rotation functionality for images...

Waardering 4 van 5 sterren (346)
137.756 gebruikers

Live HTTP Headers Vereist herstart

View HTTP headers of a page and while browsing.

Waardering 4 van 5 sterren (170)
134.414 gebruikers

Lucifox Vereist herstart

Read EPUB e-books and browse OPDS catalogs.

Waardering 4 van 5 sterren (23)
128.899 gebruikers

Screengrab (fix version) Vereist herstart

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

Waardering 5 van 5 sterren (307)
126.495 gebruikers

ChatZilla Vereist herstart

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Waardering 4 van 5 sterren (125)
121.578 gebruikers

Youtube MP3 Podcaster Vereist herstart

Self contained add-on for downloading youtube videos to mp3 for easy listening on podcasting gadgets like a Zune or iPod

Waardering 4 van 5 sterren (240)
118.330 gebruikers

DOM Inspector Vereist herstart

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Waardering 5 van 5 sterren (70)
116.545 gebruikers

BestVideoDownloader 2 - Youtube Downloader MP3 MP4

Download your favorite YouTube videos and download them as Full-HD MP4, FLV, 3GP and MP3 formats. With one mouse click!

Waardering 3 van 5 sterren (50)
114.281 gebruikers

Toolbar Buttons

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Waardering 4 van 5 sterren (328)
110.010 gebruikers

Bluhell Firewall

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Waardering 5 van 5 sterren (300)
107.640 gebruikers

JavaScript Debugger Vereist herstart

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

Waardering 4 van 5 sterren (49)
106.232 gebruikers

Thumbnail Zoom Plus Vereist herstart

Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.

Waardering 4 van 5 sterren (372)
105.836 gebruikers

Theme Font & Size Changer

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Waardering 5 van 5 sterren (228)
98.196 gebruikers


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.

Waardering 4 van 5 sterren (229)
90.767 gebruikers

Saved Password Editor Vereist herstart

Voegt de mogelijkheid toe om aanmeldgegevens in de wachtwoordbeheerder toe te voegen en te bewerken.

Waardering 5 van 5 sterren (233)
89.223 gebruikers

RequestPolicy Vereist herstart

Beheers welke cross-site verzoeken worden toegelaten. Verbeter de privacy van uw surfen. Beveilig uzelf tegen Cross-Site Request Forgery (CSRF) en andere aanvallen.

Waardering 4 van 5 sterren (226)
86.011 gebruikers