Add-ons
Extensions by Weekly Downloads
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GNotifier
Add-on for Thunderbird that replaces the built-in notifications with OS native ones. It supports most Linux Desktop Environments as well as Windows 8.1/10.
Dafizilla Table2Clipboard
Requires Restart
Mozilla applications allow to select rows and columns from a table simply pressing Control key and picking rows/columns with left mouse button.
The selection can be copied to clipboard but the original table disposition is lost making ugly results wh...
Thumbnail Zoom Plus
Requires Restart
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.
Stylish Sync
RequestPolicy
Requires Restart
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.
Image Zoom
Live HTTP Headers (clone)
View HTTP headers of a page and while browsing.
This is an unofficial "Live HTTP headers" clone, mainly to fix the Replay feature!
Save Images
Requires Restart
Save Images saves the images from the current tab page, from the cache, to a specified location, with either the images original file name or a file name that you specify.
Complete YouTube Saver
Requires Restart
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
Linkification
Requires Restart
Converts text links into genuine, clickable links...
ChatZilla
Requires Restart
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
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.
RefControl
Requires Restart
Control what gets sent as the HTTP Referer on a per-site basis.
Dorando keyconfig
Requires Restart
A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)
As of version 2016.2, Custom keys (using custom JavaScript) work again!
UnPlug
Requires Restart
UnPlug is an extension which lets you save video and audio which is embedded on a webpage - it's a video download tool.
Copy Urls Expert
Requires Restart
Copy multiple urls (links) to clipboard. Provides options to copy urls of all opened tabs and urls in selected text. You can customize the format of copied urls. You can also open multiple links from clipboard.
DOM Inspector
Requires Restart
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.
Proxy Privacy Ruler
AutoCopy 2
Requires Restart
Copies selected text to the clipboard automatically.
P7MONTo create your own collections, you must have a Mozilla Add-ons account.
