signTextJS plus
window.crypto.signText replacement plus enhancements
9,344 users
Don't Fuck With Paste
This add-on stops websites from blocking copy and paste for password fields and other input fields.
9,322 users
Clickbait Remover for Youtube
Replaces thumbnails and modifies titles of videos on youtube.com and m.youtube.com
9,311 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.
9,299 users
LibRedirect
Redirects YouTube, Twitter, TikTok... requests to alternative privacy friendly frontends.
9,293 users
Capture & Print
This add-on lets you print a webpage's area easily.
9,236 users
Safeplex Search
Add the Safeplex Search extension to easily detect real-time threats & enjoy custom secure Yahoo® search from your browser search bar.
9,234 users
Password Generator Pro & Custom Web Search
Add the Password Generator Pro & Custom Web Search extension to generate secure passwords by clicking the favicon on your browser toolbar, and enjoy customized web search by Yahoo!®
9,204 users
Open Link with New Tab
Open the link in a new tab depending on the setting.
9,192 users
9,192 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".
9,179 users
Pinned Google Calendar
Go to the pinned Google Calendar tab. If it doesn't exist, it's created.
9,173 users
Emoji Keyboard - Emojis For Firefox
A free extension of the web tool https://coolsymbol.com/emojis/emoji-for-copy-and-paste.html. It helps input emoji in the web browser with an extensive search functionality.
9,171 users
HackBar V2
[No License, FOREVER FREE] A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar. You can ask request here: https://github.com/Hack-Free/HackBar
9,163 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
9,154 users
Seznam Doplněk – Esko
Zkrátí cestu na Seznam.cz a ochrání vás před podvodnými stránkami.
9,133 users
9,104 users
Disable HTML5 Autoplay
Disable autoplay and preloading of HTML5 video and audio players.
9,085 users
9,060 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
9,054 users
Mobile emulator
Smartphone emulator on computer very realistic with several models to test mobile websites.
9,006 users
Progressive Web Apps for Firefox
A tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox
8,984 users
Slovak spell checking dictionary
Slovak spell checking dictionary for Mozilla applications (based on the "open-source" dictionaries by Zdenko Podobný).
8,945 users
Chameleon
Spoof your browser profile. Includes a few privacy enhancing options. A WebExtension port of Random Agent Spoofer.
8,888 users
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
8,826 users