Scratch Addons
Scratch Addons provides customizable features and themes for the scratch.mit.edu website and project editor.
8,548 users
Pinned Google Calendar
Go to the pinned Google Calendar tab. If it doesn't exist, it's created.
8,515 users
Daily Top Coupons & Custom Web Search
Install the Daily Top Coupons & Custom Web Search extension to get the latest coupons, deals & offers by clicking the favicon on the toolbar & enjoy Yahoo® search from your browser.
8,435 users
SQLite Manager
manage, edit, manipulate, plot and save one or multiple SQLite databases simultaneously
7,892 users
Channel Blocker
Are you annoyed by YouTube™s video recommendations? Our Add-on enables the function of blocking anything you'd like. Block separate videos, users or whole channels with only one click!
7,848 users
GSConnect
Share links with GSConnect, direct to the browser or by SMS. Requires at least v7 of the Gnome Shell extension to function.
7,797 users
Bulk Image Downloader
Integrates Bulk Image Downloader (a Windows only app that must be installed separately) with FireFox. Download full sized images from almost any thumbnailed web gallery. Supports most popular image hosts such as imagevenue, imagefap, flickr, etc.
7,677 users
Breez ClickOnce
Breez ClickOnce enables ClickOnce support in Mozilla Firefox. It is required to be able to launch any Windows Forms or Windows Presentation Foundation application that is based on Microsoft's ClickOnce technology.
7,379 users
Ant Download Manager
antFF is Ant Download Manager software integration module for Windows platforms. For everyone who thinks that we are the same as is Ant Video Downloader - we are not Ant Video Downloader, we are another software, we are another group of developers.
7,202 users
WebScrapBook
Capture web pages to local device or backend server for future retrieval, organization, annotation, and edit.
7,162 users
Form History Control
Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller. Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.
7,162 users
Rajiko
Rajiko is a tool for unblocking geolocation restriction of radiko.jp! Enjoy radio of Tokyo，Aomori,and etc From Osaka,Nagazaki even overseas!
7,120 users
Ultrawidify
Aspect ratio fixer for Youtube. Allows improperly encoded videos to properly fit ultrawide and superwide displays (e.g. 21:9) — and it attempts to do so automatically.
6,758 users
Session Sync
Save sessions as bookmarks and access them across devices. Advanced Session Manager: edit, save, change, restore. It can also be your best Bookmark Manager
6,669 users
Html Validator
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon For Firefox 56, use 0.974 (see all versions below). For Firefox 57, see Web Extensions.
6,480 users
MySessions
A simple session manager. You can quickly save your current browser state and reload it whenever necessary. This is not a replacement for Michael Kraft's "Session Manager", but it allows you to import saved sessions from the "Session Manager".
6,453 users
