9,267 users
British English Dictionary
British English Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey by David Bartlett. To enable, right-click in a multi-line text box, select "Languages", then "English / United Kingdom".
9,265 users
MarkDownload - Markdown Web Clipper
This extension works like a web clipper, but it downloads articles in a markdown format. Turndown and Readability.js are used as core libraries. It is not guaranteed to work with all websites.
9,213 users
Pinned Google Calendar
Go to the pinned Google Calendar tab. If it doesn't exist, it's created.
9,212 users
迅雷下载支持
该扩展用于实现迅雷11接管Firefox浏览器的下载请求。
9,186 users
Disable HTML5 Autoplay
Disable autoplay and preloading of HTML5 video and audio players.
9,182 users
9,140 users
You.com | The Search Engine You Control
Sets Firefox's default search engine to You.com
9,136 users
X-notifier (for Gmail,Hotmail,Yahoo,AOL ...)
Notifier for gmail, yahoo, hotmail, aol and more webmails. X-notifier(aka WebMail Notifier) checks your webmail accounts and notifies the number of unread emails... Supports : gmail, yahoo, hotmail, and more
9,132 users
Profile Switcher for Firefox
Create, manage and switch between browser profiles seamlessly.
9,098 users
New Tab Suspender
A very lightweight tab suspender to suspend inactive tabs that reduces an overall memory usage of Firefox, uses a Firefox native discard API
9,085 users
Capture & Print
This add-on lets you print a webpage's area easily.
9,038 users
Instant Gaming
Browse the web for your favorite games and always know if they are available at Instant-Gaming.com !
9,033 users
EditThisCookie
EditThisCookie is a cookie manager.
9,015 users
Open Link with New Tab
Open the link in a new tab depending on the setting.
8,989 users
FantasyPros: Win your Fantasy League
Get expert advice for your fantasy team from any website
8,970 users
Vietnamese Dictionary
Enables spell checking in Vietnamese with a wordlist based on Hồ Ngọc Đức’s Free Vietnamese Dictionary Project.
8,962 users
Private Bookmarks
Enables a password-protected bookmark folder.
8,944 users
Activate Reader View
This add-on adds a button to the toolbar. Clicking on it activates the Reader View even if the icon in the address bar is not present.
8,910 users
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
8,906 users
Progressive Web Apps for Firefox
A tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox
8,869 users
8,866 users
Slovak spell checking dictionary
Slovak spell checking dictionary for Mozilla applications (based on the "open-source" dictionaries by Zdenko Podobný).
8,839 users
Alitools shopping assistant
Auto-find & apply AliExpress ™ promo codes, price history, seller rating, similar products, find item by picture
8,829 users
8,811 users