Smart HTTPS
This extension automatically changes HTTP web addresses to the secure HTTPS, whenever possible.
16,789 users
Web Scraper
Web Scraper is a website data extraction tool. You can create a sitemaps that map how the site should be navigated and from which elements data should be extracted. Then you can run the scraper in your browser and download data in CSV.
16,758 users
Behind The Overlay
One click to close any overlay popup on any website. Use keyboard shortcut Cmd+Shift+X (Mac OS X) or Ctrl+Shift+X (Windows / Linux).
16,655 users
Extension Signal Spam
Alertez Signal Spam en un clic sur un spam ou phishing depuis votre mail Orange, SFR, Yahoo!, Gmail, Laposte.net, Outlook, Free, AOL. Protégez-vous contre le Phishing et soyez alerté des sites frauduleux dans votre webmail ou votre navigation web.
15,474 users
The Stream Detector
This addon provides an easy way to keep track of manifests and subtitles used by various streaming protocols. Also allows for detecting custom file types and downloading media files.
14,732 users
Runet Censorship Bypass
This extension allows bypassing censorship of Russian government (i.e. only sites blocked by RosKomNadzor, RKN), giving you access to libraries, encyclopedias, oppositional political sites, and to innocent sites blocked to many reasons.
14,330 users
Xdebug Helper for Firefox
This extension is very useful for PHP developers that are using PHP tools with Xdebug support like PHPStorm, Eclipse with PDT, Netbeans and MacGDBp or any other Xdebug compatible profiling tool like KCacheGrind, WinCacheGrind or Webgrind.
13,998 users
PDF2Go - PDF Editor & Converter
Solve all your PDF editing and conversion needs with this free All-in-One online PDF tool.
13,524 users
Markdown Viewer
Markdown Viewer with 30+ Themes, Dark Mode, MathJax, Mermaid diagrams, Syntax Highlighted code blocks
13,491 users
YouTube mp3 Downloader
The YouTube mp3 Downloader Add-on includes a Button on any YouTube Page and allows you to convert the YouTube Video to a mp3 with just one click. Compatible with new FireFox Quantum 57+
13,293 users
Joplin Web Clipper
Capture and save web pages and screenshots from your browser to Joplin. The Joplin application is required to get this extension working - https://joplinapp.org
13,260 users
IE View WE
Provides ability to open pages and links by Internet Explorer (Cloned IE View based on WebExtensions-based)
13,079 users
Youtube Downloader
Please play the video on youtube then click the icon in the top right tab to download mp3 or videos. Note: This add-on will direct the user to a downloader website to download the video or mp3 of your choice from youtube.
12,836 users
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
12,716 users
Substital
Add subtitles to any video or movie online. Be it on Netflix, Disney+, Youtube or any other online streaming platform.
12,083 users
Skip Redirect
Some web pages use intermediary pages before redirecting to a final page. This add-on tries to extract the final url from the intermediary url and goes there straight away if successful.
12,030 users
![Grammalecte [fr]](https://addons.mozilla.org/user-media/addon_icons/701/701168-64.png?modified=1542696783)
Grammalecte [fr]
French grammar checker. Included: conjugation tool, lexicographer, text formatter and spelling dictionaries.
11,885 users
Solflare Wallet
The most powerful wallet on Solana, trusted by 4M+ users managing over $20B in assets.
11,692 users
XDM Browser Monitor
XDM integration module for Firefox Quantum.This addon should be used with XDM 2018 and higher to take over download from Firefox.Please visit https://github.com/subhra74/xdm for more information.
11,559 users
javascript
add javascript that will run on this domain. back up your scripts in the options area (shortcut there by clicking the "JS" letters in the bottom right)
11,528 users
