Open with VLC
Add a content menu Open with VLC on audio / video links. Links must contains file extensions (.mp4, .mkv, ...) Prerequisite : - VLC must be opened - HTTP web interface must be enabled (Settings > Interface > HTTP web interface)
6,039 users
simple-modify-headers
The extension rewrite the header (request or response) based on a rules table. It 's possible to add, modify or remove header fields for a choosen url pattern. It's possible to import/export the configuration
5,981 users
Glitter Drag
A drag extension that supports you drag text, links and images then helps you open , copy or search it
5,928 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.
5,921 users
FoxReplace
Lets you replace text in web pages. You can define a substitution list and apply it automatically or at your own discretion, or make individual substitutions. You can use this as a filter, or just for fun :)
5,846 users
ReloadMatic: Automatic Tab Refresh
ReloadMatic automates the periodic reloading / refreshing of browser tabs. It offers cache control, custom intervals, POST support and many other features. It also integrates with browser features such as tab restore, pinning, and incognito mode.
5,845 users
Steam URL Opener
Allows you to open URLs inside Steam Client to save the hassle of logging in normal browser (with a single click on a button).
5,689 users
ShareX
Note: This addon is designed to be used in conjunction with the open-source application ShareX (https://getsharex.com) to integrate with Firefox. Adds 'Upload with ShareX' button to image, video, audio and text selection context menu.
5,625 users
Pinned GMail
Go to the pinned GMail tab. If it doesn't exist, it's created. It also alerts you the unread emails.
5,597 users
Table Capture
Copies HTML tables to the clipboard or exports them to Microsoft Excel, CSV, Google Sheets, Office 365, etc.
5,595 users
StayFree - Web Analytics & Time Tracker
Analytics to help you understand and control your website usage, leading to less distractions and enhanced productivity
5,524 users
Recordify Title Discover
A plugin which will read the Title/Author from the current streaming service and provides it to Recordify, a third party recording application made by Abelssoft
5,455 users
WebHID for Firefox
Provides the WebHID API by connecting to a local server (needs to be installed separately).
5,426 users
BeIDConnect
Software linked to the webservice of the Belgian federal administration for signing a digital file in a reliable manner with your Belgian electronic identity card.
5,392 users
恢复标签页
Add an icon to the toolbar.When you clicked the icon ,this tool restores the single most recently-closed session, whether it's a tab or a window ; 向工具栏添加一个图标，单击，恢复最近关闭的标签或窗口。
5,294 users
DjVu.js Viewer
The extension is a local copy of the DjVu.js Viewer which is available on https://djvu.js.org/. It allows you to open links to .djvu files right in the browser and .djvu files from a local drive. Also, it processes tag with .djvu files.
5,255 users
Live Server Web Extension
Live Reload feature for Dynamic content (PHP, Node.js, ASPNET - Whatever, it doesn't matter). This extension is for Live Server - VSCode Extension (required v3.0.0+).
5,193 users
