Udvidelser opdateret for nylig
An easier management of the user interface language
Classic Toolbar Buttons Ingen genstart
'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions on Windows.
Beta builds on versions page!
Ghostery Ingen genstart
Increase your browsing privacy, protection, and speed.
Facebook Message Seen Disable Ingen genstart
Facebook Message Seen Disable lets you turn off Facebook's Message Seen feature automatically for your account. You can still use Seen feature for others.
Facebook Sidebar Ingen genstart
Facebook Sidebar brings Facebook right into your Firefox. Get notifications, status and photos from Facebook instantly.
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.
Quickly deletes pages with a default reason on MediaWiki websites with many shortcuts.
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon
For Online HTML 5 validation, you need 0.962
Download YouTube videos in various formats including 1080p, 4K etc (DASH formats). Convert audio track from videos to MP3 or WAV, or save audio in native format (Ogg, AAC/M4A, MP3, OPUS). Save YouTube page, video, comments and subtitles to one folder
Download Flash and Video is a great download helper tool that lets you download Flash games and Flash videos (YouTube, Facebook, Dailymotion, Google Videos and more) with a single click.
The downloader is very easy to use.
Youtube Best Video Downloader 2 - MP3 MP4 M4A AAC Ingen genstart
Now with 1080p Full-HD Support!
Download every YouTube video you want and you can download them as Full-HD MP4, FLV, 3GP, MP3, M4A and AAC formats. Easy & Fast!
This is a plugin for Thunderbird 3.3+ which is able to create Atlassian Jira issues out of e-mails or add the content of an e-mail as a comment on an Jira issue.
RequestPolicy Continued Ingen genstart
Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.
YouTube Video Replay Ingen genstart
YouTube Video Replay is a new tool that lets you replay YouTube Videos.
RemindMeBot-Reddit Ingen genstart
All the great features of /u/RemindMeBot in a quick and easy to use extension!
AdNauseam Ingen genstart
Fight back against advertising surveillance
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).
Support: Thunderbird and SeaMonkey
Hide Fullscreen Alert Ingen genstart
Hide Fullscreen Alert
Stop Watch timer (Sea Monkey) Ingen genstart
Stop Watch timer for Sea Monkey