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.
62,937 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.
62,851 users
User-Agent Switcher
Easily override the browser's User-Agent string
62,503 users
I still don't care about cookies
Community version of the popular extension "I don't care about cookies" https://github.com/OhMyGuus/I-Dont-Care-About-Cookies
62,235 users
Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
62,094 users
Imagus
With a simple mouse-over you can enlarge images and display images/videos from links.
61,869 users
Popup Blocker (strict)
Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address
61,742 users
61,740 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.
61,713 users
TinEye Reverse Image Search
Click on any image on the web to search for it on TinEye. Recommended by Firefox! Discover where an image came from, see how it is being used, check if modified versions exist or locate high resolution versions. Made with love by the TinEye team.
60,381 users
YouTube Downloader
Looking for youtube video downloader? Install the YouTube Downloader and download video from YouTube.
60,335 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.
60,020 users
Download Manager (S3)
View and manage downloads from a tidy status bar.
59,895 users
Trend Micro Toolbar
See Links to Risky Websites at a Glance. Enhance Your Protection from Trend Micro Security Software.
59,772 users
Global Speed
Set a default speed for video and audio.
59,443 users
Dark Mode (WebExtension)
A global dark theme for the web
58,426 users
Web Archives
View archived and cached versions of web pages on 10+ search engines, such as the Wayback Machine, Archive․is, Google, Bing and Yandex
58,324 users
SingleFile
Save an entire web page—including images and styling—as a single HTML file.
57,409 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。
56,697 users
Old Reddit Redirect
Ensure Reddit always loads the old design
56,485 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
56,364 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
56,308 users
55,512 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.
55,384 users
Web eID
Use your electronic identification card for secure authentication and digital signing.
55,065 users