AdNauseam
Blocking ads and fighting back against advertising surveillance.
65,280 users
User-Agent Switcher
Easily override the browser's User-Agent string
65,233 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.
65,066 users
Okta Browser Plugin
Okta Browser Plugin
64,074 users
Global Speed
Set a default speed for video and audio.
63,481 users
Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
63,428 users
Manuals Hunt and Search
Add the Manuals Hunt and Search extension to access over 30,000 manuals by clicking the favicon on the toolbar, and get web results from Yahoo® Search
63,274 users
Bitdefender TrafficLight for Firefox
Bitdefender TrafficLight adds a strong and non-intrusive layer of security to your browsing experience
63,181 users
Cookie Quick Manager
An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
62,553 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.
62,258 users
Popup Blocker Ultimate
Best Pop-up Blocker for Firefox. (Best in Rating, Performance, This addon does NOT collect user's data same as Poper Blocker)If your Firefox version is not 57+ please install version 8.1 from Official website.
60,827 users
Task Manager Tab & Custom Web Search
Add the Task Manager Tab & Custom Web Search extension and get productivity-enhancing tools online by clicking the favicon on the toolbar & enjoy access to Yahoo® search from your browser search bar.
60,346 users
Trend Micro Toolbar
See Links to Risky Websites at a Glance. Enhance Your Protection from Trend Micro Security Software.
60,219 users
划词翻译
一站式划词 / 截图 / 网页全文 / 音视频翻译扩展,支持谷歌、DeepL、ChatGPT、百度等 9 个国内外主流翻译服务,均可用于全文翻译。能在 PDF 里使用。支持辅助键、快捷键、悬浮取词。
59,747 users
57,942 users
YouTube Downloader
Looking for youtube video downloader? Install the YouTube Downloader and download video from YouTube.
57,625 users
Quick Live News & Custom Web Search
Install the Quick Live News & Custom Web Search extension and click the icon on the toolbar to access top news stories & customized web search from your browser
56,623 users
Dark Mode (WebExtension)
A global dark theme for the web
56,529 users
Old Reddit Redirect
Ensure Reddit always loads the old design
56,523 users
Lilo - Search engine
add Lilo search engine to Firefox.Lilo is a fast and relevant search engine.Lilo gives its revenue to social and eco-friendly projects and acts for privacy.
55,669 users
Web eID
Use your electronic identification card for secure authentication and digital signing.
54,849 users
Redux DevTools
DevTools for Redux with actions history, undo and replay.
54,791 users
Flash Player
Flash Player runs and saves any flash file across the web. The Addon allows you to add any flash file into the app's playlist and access them on any website by simply clicking an extension icon.
54,769 users
Web of Trust, MyWOT/WOT: Website Reputation Rating
Instantly know which websites to trust! WOT protects you while you browse, warning you against dangerous sites that host malware, phishing, and more.
54,515 users
Startpage Privacy Protection
By installing the free Startpage Privacy Protection extension you will be able to stop trackers and cookies and set Startpage as your default search engine.
54,461 users