Video Speed Controller
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
102,726 users
Polish Spellchecker Dictionary
Polish spell-check dictionary for Firefox, Thunderbird and SeaMonkey.
101,891 users
Mendeley Web Importer
Fast, convenient import of references and PDFs to your Mendeley Reference Manager library
100,829 users
Logitech Smooth Scrolling
Logitech® Smooth Scrolling extension delivers smooth-as-smartphone scrolling in Firefox and works with most Logitech mice and touchpads — new and old. Requires Logitech SetPoint 6.60 and above and Windows 7 and above. Gaming mice not supported.
97,590 users
VPN
Time to Level Up Privacy with SandVPN: FREE, FAST VPN PROXY! Bypass Geo-Blocking and be free and anonymous online with our Safe and Secure VPN. Safe Browsing - Blacklist & Whitelist URLs Feature - Smart Proxy Feature!
97,469 users
Cookie-Editor
Cookie-Editor lets you efficiently create, edit and delete a cookie for the current tab. Perfect for developing, quickly testing or even manually managing your cookies for your privacy.
96,956 users
Free VPN Proxy & Ad Blocker - Planet VPN
Secure your web browsing with Planet VPN - a free vpn proxy addon
95,840 users
Free Download Manager official extension
Free Download Manager integration with your Firefox browser
95,772 users
РуТрекер - официальный плагин от RuTracker.org
Доступ на RuTracker.org. Поиск по трекеру в контекстном меню. Комфортная работа с зеркалами. Использование любого адреса с переадресацией на него всех ссылок. Прокси и пр.
94,420 users
Proton VPN: Fast & Secure
Secure your internet and protect your online privacy in one click.
87,852 users
Converter Suite & Custom Web Search
Add the Converter Suite & Custom Web Search extension to convert files by clicking the favicon on the toolbar & to access Yahoo!® search from your browser.
87,150 users
Brazilian Portuguese Dictionary (New Spelling)
The same spellchecker shipped with the Brazilian version of Firefox.
86,940 users
Windscribe - Free VPN and Ad Blocker
Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day.
85,345 users
Qwant - Search engine & tracker blocker
The Qwant extension sets qwant.com as your default search engine and blocks trackers.
82,863 users
Plasma Integration
Multitask efficiently by controlling browser functions from the Plasma desktop.
81,541 users
Package Tracking Tab & Custom Web Search
Track and organize your shipments with Package Tracking Tab and Custom Web Search. Pin key deliveries, share updates, find carrier contacts, get instant help with built-in AI assistance and access Yahoo search.
81,353 users
Ant Video Downloader
Browser extension with a companion application for downloading and merging streaming video segments.
79,314 users
YouTube Video and Audio Downloader (WebEx)
Download YouTube videos in all available formats and extract the original audio files
79,119 users
Avira Browser Safety
Avira Browser Safety helps identify internet addresses that are harmful to your system when you are browsing the web and protects your privacy by preventing invisible trackers.
79,008 users
Citavi Picker
The Citavi Picker is an extension for Citavi software users (www.citavi.com). The Citavi Picker lets you easily import online information.
78,692 users
Save webP as PNG or JPEG (Converter)
Convert any image (WebP, AVIF, etc.) to PNG or JPEG (with choice of quality) for downloading. Right-click context menu calls up format options overlaid on the image. Read the detailed description and check the screenshots for more info.
78,434 users
